The Grand Teton Music Festival Board of Directors
Katherine (Kakie) Brooks grew up in St. Paul, Minnesota, then moved to the East Coast for college and graduate school. She attended Smith College (1981, B.A. in English), then taught high school English in the Boston area for 5 years. In 1986, she moved to Charlottesville to pursue graduate work in University of Virginia’s English department (M.A., 1990) and is ABD—all but dissertation—toward her Ph.D. in English Literature. She taught freshman English at University of Virginia and at Virginia Tech before starting her family in 1993. Around that time, she began a consulting business called The Inheritance Project which focused on the psycho-social issues surrounding wealth transfer. She and her two partners pursued that work until 2000. Since 2000, she has served on and/or provided informal consulting to a dozen local nonprofits. She is the Chair of the Center for Nonprofit Excellence in Charlottesville, Virginia.
Kakie has two daughters (Sophie is 22 and Anna is 19), and she is married to Dr. George Beller, former Chief of Cardiology at University of Virginia. As a family, they enjoy hiking, skiing, and the arts.
John Costello, Secretary
John Costello has 30 years of experience in consumer goods, retail, and technology. The first half of his career was spent in classic management jobs, with the second half devoted to helping companies navigate high change environments, from start-ups to $70-billion companies.
John is currently Global Chairman of the Mobile Marketing Association and recently retired as President – Global Marketing and Innovation at Dunkin’ Brands (the parent company of Dunkin Donuts and Baskin Robbins). He served as EVP of The Home Depot, Chief Global Marketing Officer of Yahoo, and President of Nielsen US. He began his career at Procter & Gamble, where he held senior marketing and brand management positions, and served as Senior Vice President of Marketing and Sales at Pepsi-Cola, USA.
Christian Erdman lives in Teton Village with his wife Jacqueline and their daughter Mackenzie. They have had property in Jackson since 2004, and recently moved here full-time along with Christian’s office from San Francisco.
Christian is a Private Investor. He is Vice President of Ulupalakua Ranch Inc. He holds positions at Spokane Gateway LLC, Valhalla Property Holding LLC, and Shasta Copper Exploration Inc. He also serves on the boards of The Abalone Farm Inc., TerraMax Inc., and Coleridge Downs Ltd.
He holds a Bachelor of Arts in Art History and Criticism, and a Bachelor of Science in Agricultural and Managerial Economics—both from University of California, Davis.
Christian previously served on the boards of the University of California Davis Foundation, and of the San Francisco Conservatory of Music. At the UC Davis Foundation, he was a member of the finance and investment committee and of the audit committee. At The SF Conservatory, he was a member of the Executive Committee and had served at various times as head of the Audit Committee and of the Committee on Academic Affairs and Student Life. He served as the Chair of the Frank H. and Eva B. Buck Foundation where he where he was responsible for winding the Foundation down at the end of its 25-year life.
Christian serves on the Investment Committee.
Ralph Haberfeld, Treasurer
Ralph Haberfeld spent more than 30 years as a strategic planning and marketing consultant to community financial institutions, first with a practice based in southern California and then with his own firm. Although Ralph has been retired for 12 years, the firm he founded continues as an ESOP.
Ralph graduated from Ohio University and earned his MBA from Harvard Business School.
Ralph and his wife Louise are avid wildlife enthusiasts. Ralph is an Emeritus Director at Teton Science schools in Jackson, and he and Louise support many non-profit organizations in Jackson Hole. They are great fans of the Grand Teton Music Festival, attending three evenings most weeks.
Ralph serves as Treasurer of Board of Directors.
Christine Hartley, Vice-Chair
Chris Hartley and her husband Ross retired in 1999 and moved from southeast Kansas to Teton Village. Living full-time in the mountains was a dream come true. Instead of pursuing an education in music, Chris graduated from the University of Kansas with a Bachelor and Master of Science in Nursing, specializing in Critical Care. During her career she was a clinical instructor and lecturer for universities and hospitals in Kansas, Missouri, and Oklahoma.
Her business and board experience includes forming a consulting company in Critical Care Education; founding a county-wide coalition in child abuse prevention; consulting for the first free health clinic in Joplin, Missouri; serving on the State Ethics Commission for Governor Bill Graves; and eight years on the school board of USD 508 (4 years as president). She and Ross have continued to support their alma maters, University of Kansas and Baker University respectively. In 2006, Chris and Ross endowed the first Nursing Professorship for the University Kansas during the School of Nursing’s Centennial year. Chris served on the advisory board for Women Philanthropists for KU. Ross and Chris are Co-Challengers for the Community Foundation of Jackson Hole. In September 2017, she will complete two terms as a board member of the Grand Teton National Park Foundation.
Chris joined the GTMF Auxiliary shortly after moving to Teton Village and was Auxiliary President in 2008. She served two consecutive terms as a Board Member Director and after a two year hiatus was invited to serve again. Her board work for the festival has included Chair of Development and continues to serve on the Institutional Advancement Committee.
Ross and Chris have three children; Hillary, Antonia, and Will, all of whom are singers and musicians. Will apprenticed for several summers with GTMF recording engineers Richard Mintel and Roni Jules. They also host Mum and Grandad camp in Jackson for their two grandsons; Wyatt and Jackson.
Patty Jaquith grew up in Syracuse, NY, and graduated from Mount Holyoke College.
In Northfield, IL, Patty was elected to the Sunset Ridge Elementary Board of Education, serving two terms including two years as President and subsequently elected to the New Trier High School Board of Education, serving two terms including two years as President. She also served on the Board of Directors of the Mount Holyoke College Alumnae Association as Chair of the Nominating Committee, Chair of the Development Committee, and member of the Executive Committee. At present, she is Secretary and Treasurer of the Willowbrook Homeowners Board of Directors.
An opera lover and passionate about music and theatre, Patty supports the arts in Jackson Hole with dedication and enthusiasm. Patty finished two years as President of the GTMF Auxiliary in 2014 and, after being elected to the GTMF Board in 2014, serves on the Artistic Planning & Audience Development, Governance and Education, Lifelong Learning & Community Outreach committees. She also serves on the Board of Directors of Off Square Theatre.
Laurentius Marais holds graduate degrees in mathematics, statistics, and business administration from Stanford University. At the Stanford Graduate School of Business, he received a Ph.D. degree for a dissertation on applications of computer-intensive statistical methods to topics in accounting. He has served on the faculties of the University of Chicago and Stanford University.
Dr. Marais has extensive experience in applying statistical and mathematical theory and methods and, in particular, in assessing and “refereeing” the validity of statistical studies, inferences, and conclusions. In much of his work during his 23 years at Wecker and Associates, he has developed and applied these skills in a broad variety of complex litigation and regulatory settings, often involving the critical assessment of multiple expert submissions from a range of areas of expertise having significant statistical and mathematical content. He currently is Vice President of William Wecker and Associates.
Sandra Masur is a Chicago native residing in Washington, DC. She and her husband, Scott Spector, are passionate about Jackson Hole and are deeply committed to ensuring the arts are a vibrant part of the community.
She earned her MA from the John Hopkins School of Advanced International studies and enjoyed a career as an international economist working in the Congress as well as the US Treasury. Subsequently, she worked for Eastman Kodak Company and led the business coalition in favor of NAFTA.
After 10 years with Kodak, she moved on to the National Gallery of Art as the head of the Office for Corporate Relations. She was responsible for special exhibitions fundraising and raised roughly $35M over five years.
Over the past 15 years, she has pursued her passion for horse riding and art. She serves on a number of boards involving education of low-income children, the arts, and assistance for families afflicted by cancer. She is currently serving on the DC board of Posse, which provides scholarships to outstanding urban youths. Sandra is the Chair of the 2017 Gala Fundraiser and serves on the Institutional Advancement Committee.
Ralph Matson joined the Utah Symphony in 1985 and has been a member of the Grand Teton Music Festival Orchestra since 1996, serving as Concertmaster.
Ralph received his Bachelor of Arts degree from Yale College and his Master’s degree from the Yale School of Music. After graduation, he was a member of the Cleveland Orchestra and spent eight years as Assistant Concertmaster of the Minnesota Orchestra.
Ralph and his wife Barbara Scowcroft, also a Festival Musician, live in Salt Lake City, Utah. Ralph serves on the Artistic Planning and Audience Development committee.
Barbara graduated from Stanford University with a BS in Civil Engineering and then from The University of Texas at Austin with a MS in Civil Engineering specializing in Geotechnical Engineering. She worked in the Oil and Gas Industry designing offshore structures for field development. After her two children were born, Barbara retired and became focused on family and community concerns. She now is involved in a number of family owned businesses with her siblings.
Barbara and her husband, Pat, split their time between Houston and Jackson. Barbara is on the Executive Committee for the Houston Symphony as Secretary.
Other community involvement includes St. Francis Episcopal Church as a choir member and past senior warden, Salvation Army Auxiliary, the Jones Hall Foundation, and the Shepherd Society at Rice University, a support group for the music school at Rice. Barbara also is past President of the Houston Symphony League and the Friends of the Spring Branch-Memorial Library.
Barbara and Pat fell in love with Jackson on a fly-fishing trip in 2006 and bought a second home here in 2007. They have been regular attendees GTMF concerts for many years. This would be Barbara’s second time on the GTMF Board of Directors.
Pam Niner grew up in the New York suburbs, graduated from Smith College and worked in NYC for years at House Beautiful and Interior Design magazines; fund-raising for Mayor John Lindsay; at Donaldson, Lufkin & Jenrette; and finally with furniture designer Karl Springer. She “retired” to Greenwich, CT to raise her children Andrew and Katy. She is a past president of one of three GCA garden clubs in Greenwich and also a past president of the local Smith Club.
Thanks to years of involvement with Teton Valley Ranch Camp, she and Dick moved to Jackson 10 years ago. Pam is now on the board of the National Museum of Wildlife Art and living happily in the middle of Jackson. She is currently President of the Festival Auxiliary.
David Raisbeck received a Bachelor of Science degree in industrial administration from Iowa State University and completed the executive MBA program at the University of Southern California. He held various merchandising and management positions at Cargill during his career from 1971 to 2009. In 1988, he was named president of the Financial Markets division. In 1993, he was named President of the Trading Sector. He was elected to Cargill’s board of directors and executive vice president of Cargill in 1995. He was elected Vice Chairman in 1999. Upon his retirement, he enjoys managing an active portfolio of companies and alternative assets. He also devotes time to various charities in both Florida and Wyoming.
David is a governor of the Iowa State University Foundation (emeritus) and previously served as a member of the Dean’s Advisory Council for the school of business at Iowa State University. He currently serves on the Board of Directors of Eastman Chemical and the Greater Minneapolis YMCA (Honorary). He previously served on the Board of Directors of Canadian Pacific Railway, Cardinal Health, Armstrong Industries, the United Way of Minneapolis, the US China business council, and the US Chamber of Commerce. He previously was a member of the Minneapolis Grain Exchange, Kansas City Board of Trade, and the Chicago Board of Trade.
He currently serves as chair of the Festival’s Investment Committee and is on the Executive Committee.
Ari Rifkin was a Sergeant Major in the Israel Defense Forces and a successful New York sales representative. She is now a part-time Jackson Hole resident and an avid photographer. She is also a proud aunt and grandmother.
Since the death of her husband in 2008, Ari has focused on a calling that is healing her heart and touching thousands of lives through philanthropy. She believes in giving back to society and to her Wyoming, Indiana, and Florida communities to send happiness and opportunities out into the world.
In addition to her Grand Teton Music Festival support, Ari helps Grand Teton National Park Foundation to promote its mission, fights hunger, and sends veteran’s children to camp. The arts and land preservation efforts benefit from her support as well and her funding for research, a subject close to her heart, may mean someone else won’t lose their sight to degenerative eye disease as her husband did.
Ari serves on the Artistic Planning and Audience Development Committee.
Jon Rotenstreich is the Managing Partner of RF Partners LLC, a family investment firm based in NYC, and founding principal of Bayer Properties, a real estate development company. He served on the Festival board from 2005 to 2008 and held the position of Secretary and Treasurer. An avid supporter of the arts, he has also served as a past board member of Lincoln Center and the Metropolitan Opera. Currently, he serves on the board of NY Public Radio and is a trustee of the Montefiore Medical Center. Jon and his wife Susan live in New York City and have had a family home in Jackson for over 20 years.
Jon chairs the Leadership Review Committee and serves on the Audit Committee.
Philip Sherringham served as President and Chief Executive Officer of People’s United Financial Inc. (Financial Federal Corporation is part of People’s United) from February 6, 2008 to April 2010.
Mr. Sherringham served as Chief Executive Officer and President of People’s United Bank, a subsidiary of People’s United Financial Inc. from February 2008 to April 2010 and also served as its Chief Financial Officer. He served as an Acting Chief Executive Officer and Acting President of People’s United Financial Inc., since November 9, 2007 until February 2008 and also served as its Chief Financial Officer and Executive Vice President from 2003 to August 2008. He served as an Executive Vice President and Chief Financial Officer of United California Bank in Los Angeles. Mr. Sherringham joined United California Bank’s predecessor, SanwaBank California in 1993. Previously, he served as Chief Financial Officer of Citadel/Fidelity Federal Bank in Glendale, California from 1991 to 1993, and he served as Treasurer of Los Angeles-based CalFed Inc./California Federal Bank from 1989 to 1991. He served as Director of People’s United Financial Inc. from February, 2008 to April 2010. He has been a Director of Connecticut Business And Industry Association, Inc. since 2008. Mr. Sherringham holds an undergraduate degree from Paris University and is a graduate of Hautes Etudes Commerciales in Paris. He completed the International Management Program offered in cooperation by New York University, the London Business School and Hautes Etudes Commerciales.
Gary Silberberg moved to Jackson in 2000 from New York. He graduated from Brown University and holds a law degree from Yale University. He currently serves on the boards of the Center of Wonder, CityKids, and the Cultural Council, and has previously served on the boards of the Murie Center, the Center for the Arts, Teton County Education Foundation and Public Education Coalition.
Gary loves the outdoors, and can be found skiing, hiking, or mountain biking on most days. Gary and his wife Veronica have three children. Gary spent too many years in finance before realizing the real fun was to be had in the Arts.
Gary joined the GTMF Board in 2013 and chairs the Education, Lifelong Learning and Community Outreach committee.
Arnold Silverman earned a Bachelors and Masters from the University of California, Berkeley and an MBA from Columbia University.
His career covers 40 years of management experience, including Principal of Discovery Ventures Corporation, a private venture capital firm, which he founded in 1995, President of Dymo Industries, and CEO of ICOT Corporation, where he led its acquisition of Amati Communications and ultimately its strategic sale to Texas Instruments.
Arnold’s Board experience includes serving as Chairman of the American Electronics Association, Director of Oracle Corporation, Chairman of Informatica Corp., and Director of Delphix Corp. He has also served as a Board Member of numerous leading software industry companies including KIVA; iOwn; Times Ten Performance Software; Panscopic and Luna Information Systems; Jaspersoft Corporation; Exemplary Software Inc.; Valchemy, Inc.; Nishan Systems, Inc.; QUIQ; Promptu Corporation; Informatica Corp.; Nucleus Partners LLC; and E-Intelligence Inc. He is a current board member and Past Chair of the UC Berkeley Foundation; serves on the Board of Advisors for UC Berkeley (Chancellors Board); a member of the L&S Berkeley; a member of the Advisory Board Stanford Distinguished Career Institute at Stanford University and also on the board of more than six high-tech early stage companies.
Arnold is the chair of the Strategic Vision committee and serves on the Leadership Review and Executive committees.
Robert Spetzler, MD, is a world-renowned neurosurgeon who specializes in cerebrovascular disease and skull base tumors. He has been involved in pioneering the technique of hypothermia and cardiac arrest for the treatment of difficult brain lesions. He has been honored many times by professional societies, including the American College of Surgeons and the Congress of Neurological Surgeons. In 1994, Dr. Spetzler was chosen to be the Honored Guest of Congress of Neurological Surgeons. At age 49, he was the youngest recipient of this prestigious honor.
Dr. Spetzler was born in Stierhoefstetten, Germany, and moved to the United States at the age of 11. He received his B.S. from Knox College in Galesburg, Illinois, and his Doctor of Medicine from Northwestern Medical School in Chicago. His postgraduate training was completed at Wesley Memorial Hospital–Northwestern in Chicago. He completed a residency in neurosurgery at the University of California – San Francisco. He received board certification in September 1979 from the American Board of Neurological Surgery.
He and his wife Nancy are both musicians and split their time between Jackson, California and Arizona.
Allan Tessler, Chair
Allan Tessler has been involved in the Festival since the mid-90’s. He helped create the Jackson Hole Wine Auction, chaired several auctions, served as President of the Board, and played a key role in the hiring of Maestro Runnicles. As an attorney and specialist in investment banking and turnaround financing, he founded International Financial Group, Inc., an international merchant banking firm and serves as its chairman and CEO. He is Chairman of Rocky Mountain Bank and a director of a number of public companies.
Allan started his career in the law firm of Cleary, Gottlieb, Steen & Hamilton. He has also served as counsel to Spengler, Carlson, Gubar & Churchill, and was senior managing partner of Shea & Gould. He supported his alma mater as co-chairman of the Cornell Law School Capital Campaign and as an emeritus trustee and Presidential Counselor of Cornell University. Allan is also Emeritus Chair of the Hudson Institute and a member of the Board of Governors of the Boys and Girls Clubs of America.
Allan serves on the Investment and Institutional Advancement committees.
Barbara Manfrey Vogelstein
Barbara Manfrey Vogelstein has nearly 25 years of experience in private equity investing. She was a Partner of Warburg Pincus, one of the world’s largest private equity firms and its first woman venture capital partner. She was selected to found the firm’s overseas office in London. Barbara then became a Partner of Apax Partners & Co. Ventures, a leading worldwide venture capital firm, where she was responsible for the firm’s media investments and chaired the firm’s international media investment group.
She is a graduate of Vassar College, with a Bachelor’s degree in Economics, and a Chartered Financial Analyst. Barbara retired and now spends her time pursuing various not-for-profit activities, currently serving as Chairman of the Brooklyn Museum and as Chairman of the School of American Ballet. She also is a Board member of Third Way, a centrist Think Tank, and is Chairman of the Advisory Board of India 2020, an Indian private equity fund. She was formerly a Trustee of Vassar College, where she chaired its $430M capital campaign.
Barbara and her husband John live in New York, NY, Naples, FL, and Jackson, WY, where she serves as a supporter of many social service and community organizations. Strong supporters of the arts, Barbara and John are music and dance lovers in all of their communities.
Barbara chairs the Institutional Advancement committee and serves on the Leadership Review and Executive committees.
After growing up in Chicago’s South Shore neighborhood, Andy attended college at the University of Wisconsin and graduate school at the University of Minnesota, majoring in math and engineering.
Now retired, he enjoyed a 30-year career as a consulting mechanical engineer in California and served as president of Syska Hennessy Group, the largest engineering firm of its type in the country, with offices in New York, Los Angeles, and other major cities.
Notable accomplishments under his leadership included firm-wide technology advancements, creating a strong client-service culture, designing sophisticated sales and marketing initiatives, and rebranding the firm as a broader based consulting company.
Andy resides in Wilson, Wyoming near Grand Teton National Park and in Tucson, Arizona. In Wyoming, he served on the Teton County Energy Board as they implemented a major energy reduction plan.
He is a board member and past board chair for True Concord Voices and Orchestra in Tucson Arizona and serves on the board of the Tucson Desert Song Festival. In retirement he utilizes the educational resources of the University of Arizona, attends many of Tucson’s and Jackson’s cultural events, and enjoys hiking, golfing, skiing, bridge, and travel.
William E. Wecker
Bill Wecker is the Founder and President of William E. Wecker Associates, Inc. Prior to founding the company, he enjoyed a distinguished academic career at the University of Chicago, the University of California, Davis, and Stanford University. Bill holds a bachelor’s degree from the United States Air Force Academy and MS and Ph.D. degrees from the University of Michigan. He is a member of the American Association of the Advancement of Science; the American Statistical Association; the Institute of Mathematical Sciences; and the Society for Risk Analysis. Previously, he has served on the Editorial Board of the Journal of Business and Economic Statistics and the Journal of the American Statistical Association. He also served in the United States Air Force as a fighter pilot. Bill is a Founding Director of the US Air Force Academy Endowment.
In 2012, he moved to Jackson, WY. Bill says that the Music Festival was an important factor in his deciding to move to Jackson: “There is no need to travel to find world-class performances—they are right here.” When he does travel, it is to Berlin where our Maestro, Donald Runnicles, is Music Director of the Deutsche Oper. Bill chairs the Audit committee, serves on the Housing and Institutional Advancement committees, and is a Director of the Supporting Organization.
John Whitmore graduated from the University of Missouri. He served as a US Naval officer from 1955 to 1957 in the Pacific and Indian Oceans. He was with a Chicago and a Washington, DC Trust Company before joining the Bessemer Trust Company in New York City in 1975 as President and Chief Executive Officer. He served in this position until he retired in 1999. He has since that time served as a Director and a Financial Advisor.
His outside activities include serving on the board of the Greenwich Academy (Chairman for three years). He has served on the boards of the Washington National Symphony; the Chesapeake Bay Foundation; the George Washington Fredericksburg Foundation; and Washington College in Chestertown, Maryland. He and his wife, Suzanne, began building a house in Jackson at 3 Creek Ranch in 2007. Before that, they had visited Jackson Hole off and on since the 1970’s. Whenever the Music Festival was performing, they always made it one of the high points of their visits. He and his wife have 2 daughters and 2 grandchildren.
John joined the GTMF Board in 2009 and was elected to his second term in 2012. He serves on the Investment and Finance committees.
Mark L. Yockey, CFA, is a managing director of Artisan Partners and a portfolio manager on the Global Equity team. In this role, he is a portfolio manager for the Artisan Non-U.S. Growth, Non-U.S. Small-Cap Growth and Global Equity Strategies, including Artisan International, International Small Cap and Global Equity Funds.
Prior to joining Artisan Partners in December 1995, Mr. Yockey was the portfolio manager of the United International Growth Fund and vice president of Waddell & Reed from January 1990 through December 1995. Before assuming responsibility for the United International Growth Fund, Mr. Yockey was an analyst for Waddell & Reed from 1986 through 1989, specializing in the worldwide health care industry and international special situations. Earlier in his career, he was a health care analyst for the State of Michigan Retirement Fund for five years. Mr. Yockey holds a bachelor’s degree and a master’s degree in finance from Michigan State University. He completed one year of undergraduate work at the Université d’Aix-en-Provence in France. He also worked for the French bank, La Société Générale. He is fluent in French.
Mark and his wife Laura split their time between Jackson and San Francisco and have been Festival subscribers since 2015.