Our Mission
Fairplex at 100
Founded in 1922 with a mission centered on the region’s agriculture and commerce, Fairplex is richly ingrained in the history of Southern California. As we approach the 100-year anniversary of the LA County Fair, it is important to ensure our strategies are relevant and beneficial to Southern Californians.
During this process, we will honor and respect the mission, purpose and history of Fairplex while collaborating with stakeholders, government officials and neighbors to further build community and strengthen our economy for those who live, work play and learn at Fairplex.
We invite you to visit this page often to see our progress and welcome your input into this very important process.
Executive Team

Walter M. Marquez
President & Chief Executive Officer
Joined Fair Association: 2018
Walter serves as the CEO, responsible for leading the organization, financial reporting and engaging in the future development of Fairplex. With nearly 20 years of experience in higher education as an administrator and adjunct professor, Walter has held responsibilities in short and long-term financing and multiple developments, including public/private partnerships and donor-funded projects. He holds a Bachelor’s degree from Cal State San Bernardino, an MBA from Cal Poly Pomona and a Doctoral degree from the University of La Verne.

Steve Birdwell
Chief Financial Officer, Vice President of Administration
Joined Fairplex: 2022
Steve came to Fairplex in 2022, overseeing the 501(c)(5) nonprofit organization’s Accounting, Facilities, Human Resources and IT departments, as well as Fairplex Learning & Development Centers (FLDC), a 501(c)(3) nonprofit financials. Bringing with him a wealth of experience in finance, operations, and organizational leadership, Steve’s prior roles included Chief Operating Officer for Desert Champions LLC and Garden of Champions LLC at the Indian Wells Tennis Garden, home to the renowned BNP Paribas Open. During his tenure at Desert Champions, he played a key role in growing the organization from a small business into a leading sports and entertainment management firm, overseeing operations across multiple departments including Hospitality, Marketing, Merchandising, Sales, and Finance. Steve holds an MBA in Sport Entertainment from the University of North Texas and is deeply involved in community service, currently serving as Chairman of the Champions Volunteer Foundation and as a Board and Audit Committee member for the Desert Community Foundation.

Nena Hernandez
Vice President of External Affairs
Joined Fairplex: 2014
Nena Hernandez is the Vice President of External Affairs for Fairplex, overseeing the departments of Programming, Community Engagement, Governmental Affairs, Public Affairs, and social media. In addition, she has oversight over the newly formed Fairplex Learning and Development Centers (FLDC). Before being promoted in 2024, she served as Director of Community Engagement and Strategic Partnerships at Fairplex. Throughout her Fairplex career, Nena has managed the Fairplex community efforts and programming for FLDC, including the Ambassador Volunteer Program and fundraising for the non-profit’s key programs. Nena has spent most of her career in the nonprofit sector in organizations supporting children and education. Prior to joining Fairplex, Nena worked for the Los Angeles Unified School District, supporting the new school construction through their community engagement department. She also serves on the Board of the Pomona Public Library Foundation. She is a graduate of the University of California, Irvine with a BA in Political Science.

Marcus Jackson
Vice President of Sales and Marketing
Joined Fairplex: 2021
Marcus started with Fairplex during a period of transition in 2021. His background experience includes working for Six Flags, where he held the positions of Operations/Security Supervisor and eventually became the Marketing and General Sales Manager, leading sales, marketing, and operations staff at multiple properties in the Six Flags system. Marcus later joined Universal Studios Hollywood as Sr. Sales Manager, where he spearheaded business development initiatives and led the local market corporate, youth and education, convention sales, special events sales, programming, and production teams. With Fairplex, Marcus initially served as the Director of Sales before being promoted to Interim Vice President of Marketing and Sales. In December 2024 he was promoted to his current role as Vice President of Sales and Marketing, and oversees the marketing, sales, and revenue-producing operations departments, including oversight of the Sheraton Suites and Conference Center and Fairplex/Fairview RV Parks and Storage.
Los Angeles County Fair Association Board of Directors
Heidi Hanson
Chair of the Board
Joined Fair Association: 2008
Heidi Hanson was named Director in 2014 and has served as Chair of the Board since June 2019. She has also served on the Finance committee for the Child Development Center at Fairplex and the Career and Technical Education Center’s agriculture advisory committee, a program of The Learning Centers at Fairplex. Mrs. Hanson has worked at Rain Bird for over 20 years and is Finance & Administrative Manager for Rain Bird International. She also serves on the Board of Directors of Rain Bird Corporation. Mrs. Hanson has a Bachelor of Arts in Economics and Business from Lafayette College, a Master of Accounting with a Concentration in Tax from the University of Southern California, and an Executive MBA from the Drucker School of Management at Claremont Graduate University. She is married with three children, all of whom attended the Child Development Center at Fairplex.
John Landherr
Vice Chair of the Board
Joined Fair Association: 2013
John Landherr was named Director in 2015 and Vice Chair of the Board in 2021. He also serves as the LACFA Finance Committee Chair. Mr. Landherr is Chairman, President, and Chief Executive Officer of A-Z Bus Sales Inc., a transportation dealer-distributor serving the education, government, public sector, commercial, and private fleet markets with a broad portfolio of bus solutions in several states. He has over 28 years of experience in executive leadership roles at multiple companies. Before joining A-Z he served as President of Certified Aviation Services (CAS) where he was responsible for leading its growth from a regional provider to an international aircraft services company with 25 locations across the US serving all major commercial airlines both domestically and abroad.
Mr. Landherr served in the U.S. Marine Corps as a CH-53 Super Stallion weapons and tactics instructor pilot at the Marine Corps’ aviation squadron, MAWTS-1, where he was the subject matter expert for combat search and rescue operations.
Mr. Landherr additionally serves on the Pomona Valley Hospital and Medical Center Board, on its Executive and Finance Committees, as founding Board Member of Chino Hills Aquatics, public address announcer for the Chino Hills High School Varsity Football Team, a Blue and Gold Admissions Officer for the US Naval Academy Admissions Office, and as an usher for Inland Hills Church in Chino Hills. A native of Temple, Texas, Mr. Landherr earned a bachelor’s degree from the US Naval Academy and an MBA in Finance from Texas A&M University. He is married with three children.
Linda Bosserman
Secretary of the Board
Joined Fair Association: 2001
Linda was named Director in 2016 and has served as the secretary of the Board of Directors since 2017. She also serves as Chair on the Audit Committee, as well as serving on the Investment Committee. Dr. Bosserman is a Professor of Medical Oncology and Director of Value-Based Care and the Center for International Medicine. After practicing oncology in our community for 26 years her practice joined City of Hope in 2014. Dr. Bosserman focuses her professional work with academic and community clinicians to deliver the latest cancer care and clinical trials through collaborations and technology. She served four years on the board of directors for the American Society of Clinical Oncology (ASCO), was elected Fellow of ASCO, and was chosen and served three years as Editor-in-chief of ASCO’s Oncology Practice journal. She has served on many other boards and committees for regional, state, and national oncology organizations including the California American Cancer Society. She has been recognized by her peers as one of the top 4 percent Best Doctors in the US annually since 2005. She writes and lectures for professionals and the public on high-quality, value-based cancer care incorporating personalized precision cancer therapies. Dr. Bosserman is a graduate of the University of California, Berkeley, Stanford Medical School, and the Dana Farber Cancer Institute/Harvard Medical School Oncology Fellowship program. She is a former faculty member at Stanford and Harvard Schools of Medicine. Outside of LACFA and her career, Dr. Bosserman enjoys delighting guests with delicious, healthy cooking, as well as for her family, eight grown children, and 13 grandchildren.
Michael Driebe
Director
Joined Fair Association: 2005
Michael Driebe was named Director in 2019. He serves as Chair on the Finance and Compensation Committee, as well as the Governance and Nominating Committee and Executive Committee. He is Chair of the LACFA Investment Committee and is a member of the Board of Directors of The Learning Centers at Fairplex. Mr. Driebe is President of the Methodist Hospital Foundation, a sole support foundation for Methodist Hospital of Southern California. He is an active community member and has served the Association of Fundraising Professionals – Greater Los Angeles Chapter as Treasurer, Secretary, and President. Mr. Driebe is a member of the Rotary Club of San Marino, is a Certified Fund Raising Executive (CFRE), and holds a Certificate in Fund Raising Management from Indiana University. He received a master’s degree in Leadership and Management from the University of La Verne.
Heidi Gallegos, IOM
Director
Joined Fair Association: 2010
Heidi L. Gallegos, IOM was named Director in 2020. She serves as Chair on the Governance and Nominating Committee, as well as on the Finance and Compensation Committee. She is currently the President of Aligned Insight Consulting; a boutique consulting firm aiding non-profits and other 501(c)’ take their collective vision for their organization from thoughts to success.
As a former Trustee for the Rowland Unified School District in the San Gabriel Valley and as an Executive Officer for Chambers of Commerce in and around Southern California, Ms. Gallegos understands the connection between K-12 education and business. She started a non-profit organization to aid seniors, both high school and persons over the age of 55, to seek entrepreneurial opportunities as a way of finding one’s true calling in life. Ms. Gallegos studied Organizational Management at the Bible Institute of Los Angeles (BIOLA) and earned certification with the US Chamber of Commerce Institute for Organizational Management, a four-year master’s course program on non-profit management. Ms. Gallegos is originally from the San Gabriel Valley but currently lives in Temescal Valley with her husband Bob. She enjoys time with her five adult children and seven grandchildren.
Peter Hidalgo
Director
Appointed: 2021
Peter Hidalgo was appointed as a Director in 2021, representing LA County Fifth District Supervisor Kathryn Barger. He serves on the Finance and Compensation Committee, as well as the Investment Committee. He is a seasoned government affairs and communications leader, elected official, youth mentor with more than 20 years of experience in the private and public sector. Mr. Hidalgo is a Spectrum government affairs executive with responsibility for local government relations throughout greater Los Angeles County. As an elected official, Peter is a member of the Walnut-based Mt. San Antonio College Board of Trustees. His previous employment includes the City of Los Angeles as Council Chief of Staff and as Mayor’s Press Secretary. He has held leadership roles in corporate communications with Southern California Gas Company and was part of the start-up team that launched the region’s long-distance commuter rail system, Metrolink as Director of External Affairs.
He serves on the Boards of the LA’s BEST, Just Us 4 Youth the San Gabriel Valley Public Affairs Network, The Learning Centers at Fairplex, Los Angeles County Business Federation and the San Gabriel Valley Economic Partnership. Peter was born in Ecuador and is fluent in Spanish. He holds a Bachelor and a Master of Organizational Leadership from Azusa Pacific University.
Gil Ivey
Director
Joined Fair Association: 2008
Gilbert F. Ivey was named Director in 2021. He serves on the Governance and Nominating Committee. He retired from the Metropolitan Water District of Southern California as the chief administrative officer. He serves on numerous boards and commissions, including executive boards of the Los Angeles Central City Association, the Valley Industry and Commerce Association, and the American Association of Blacks in Energy. He was re-elected as the Vice Chair of the Cooperative Economic Empowerment Movement (CEEM). He is a member of San Diego’s prestigious Catfish Club, Greater San Diego and Los Angeles Area Chambers of Commerce, and serves on the city of La Verne’s Youth & Family Action Committee Executive Board. Mr. Ivey is a recipient of the American Society for Public Administration Los Angeles Metro Chapter’s Tom Bradley Equal Opportunity Award in 2004, and the Greater Los Angeles African American Chamber of Commerce award in 2005. Mr. Ivey earned a bachelor’s degree in Business Administration from California State University Dominguez Hills and numerous professional designations and certifications in management from both Pepperdine University and the University of Southern California.
Dr. Devorah Lieberman
Director
Joined Fair Association: 2011
Dr. Devorah Lieberman was named Director-Elect in 2020 and named Director in 2021. She serves on the Finance and Compensation Committee. She is the University of La Verne’s 18th and first female president. She brings more than 30 years of higher education experience, scholarship, and leadership to the institution. Dr. Lieberman is currently Chair-Elect of the New American Colleges & Universities (NAC&U), and serves on the Boards of the Coalition of Urban and Metropolitan Universities (CUMU), the Association of Independent California Colleges and Universities (AICCU), Casa Colina Centers for Rehabilitation, La Plaza de Cultura y Artes, and the LA Chamber of Commerce. She earned her bachelor’s degree in Communication Studies from Humboldt State University, a master’s degree in Intercultural Communication from San Diego State University, and a Ph.D. in Intercultural Communication and Gerontology from the University of Florida. She and her husband Roger Auerbach have two daughters, Alicea and Emery.
Margarita Luna
Director
Joined Fair Association: 2019
Margarita Luna was named Director-Elect in 2021. She serves on the Governance and Nominating Committee. She is a Senior Program Manager at The California Endowment who focuses on developing health and racial equity investment strategies in underserved communities, particularly in San Bernardino and Riverside counties. Ms. Luna also serves as Chair for the Inland Empire Funders Alliance, organizing and leading five collective impact and pooled fund efforts. She attended the University of California Los Angeles, where she earned a Master of Social Welfare in Health Services and a Master of Public Health in Community Health Sciences.
Kiana Webb
Director
Joined Fair Association: 2009
Kiana Webb was named Director in 2018 and currently serves on the LACFA Finance Committee. She is the Chief Executive Officer of Webb Family Enterprises, a management company that oversees numerous business lines through the lens of pursuing parity. Ms. Webb leads passionately, always striving to attain a higher degree of excellence, with the intention for those around her to reach their ultimate potential. She is an active participant in professional and social organizations, is an inspirational leader, a motivational speaker, and a community philanthropist. Ms. Webb is an advocate for improving the lives of women, children, and people of color, and is the proud mother of three children.
Directors Emeriti
Bernard Bernstein
Director Emeritus
Joined Fair Association: 1997
Richard Crean
Director Emeritus
Joined Fair Association: 1997
Robert Dukes
Director Emeritus
Joined Fair Association: 1990
Juan Gamboa
Director Emeritus
Joined Fair Association: 1979
Sue Hyland
Director Emerita
Joined Fair Association: 2004
Linda Keagle
Director Emerita
Joined Fair Association: 2002
Arthur Ludwick
Director Emeritus
Joined Fair Association: 1990
Stephen Morgan
Director Emeritus
Joined Fair Association: 1990
J. Michael Ortiz
Director Emeritus
Joined Fair Association: 2003
Janet Paulson
Director Emerita
Joined Fair Association: 1982
James Piatt
Director Emeritus
Joined Fair Association: 1975
Ciriaco Pinedo
Director Emeritus
Joined Fair Association: 2010
Larry Rinehart
Director Emeritus
Joined Fair Association: 1995
John Solomon
Director Emeritus
Joined Fair Association: 2006
Jil Stark
Director Emerita
Joined Fair Association: 1979
Ronald Vera
Director Emeritus
Joined Fair Association: 2001
Association Members
Ray Adamyk
Director Emeritus
Joined Fair Association: 2019
Rachel Barbosa
Director Emeritus
Joined Fair Association: 2020
Michael Beckman
Director Emeritus
Joined Fair Association: 2018
Jon Blickenstaff
Life Member 2015
Joined Fair Association: 2010
Ronald Bolding
Life Member 2012
Joined Fair Association: 2012
Laura Bollinger
Association Member
Joined Fair Association: 2003
Michele Broadnax
Association Member
Joined Fair Association: 2025
Brian Bustamante
Association Member
Joined Fair Association: 2025
Charles Cable
Life Member 2014
Joined Fair Association: 2005
Scott Dilley
Association Member
Joined Fair Association: 2009
Jimmy Espinoza
Association Member
Joined Fair Association: 2006
Martha Garcia
Association Member
Joined Fair Association: 2024
Tyler Gentry
Association Member
Joined Fair Association: 2023
Glenn Gritzner
Association Member
Joined Fair Association: 2019
Jimmy Gutierrez
Association Member
Joined Fair Association: 2003
Roger Hanawalt
Association Member
Joined Fair Association: 2004
Thomas Hsieh
Association Member
Joined Fair Association: 2010
Gorden Kao
Association Member
Joined Fair Association: 2018
Avo Kechichian
Association Member
Joined Fair Association: 2025
Don Kendrick
Association Member
Joined Fair Association: 2003
Darren Knowles
Association Member
Joined Fair Association: 2024
Patrick Leier
Association Member
Joined Fair Association: 2002
Sarah Lewis
Association Member
Joined Fair Association: 2025
Richard Martinez
Association Member
Joined Fair Association: 2010
Robert Mendez
Association Member
Joined Fair Association: 2006
Tomas Morales
Association Member
Joined Fair Association: 2025
Don Pierro
Association Member
Joined Fair Association: 2025
Enrique Rodriguez
Association Member
Joined Fair Association: 2022
Rodri Rodriguez
Association Member
Joined Fair Association: 2002
Darrel Sauceda
Association Member
Joined Fair Association: 2023
Leah Skinner
Association Member
Joined Fair Association: 2024
Christine Suh
Association Member
Joined Fair Association: 2024
Royce Stutzman
Life Member 2007
Joined Fair Association: 1990
Joshua Swodeck
Association Member
Joined Fair Association: 2018
Emmett Terrell
Life Member
Joined Fair Association: 2004
Edward Tessier
Association Member
Joined Fair Association: 2004
Gary L. Thomas
Life Member 2010
Joined Fair Association: 2002
Mark Warren
Association Member
Joined Fair Association: 2002
Zeb Welborn
Association Member
Joined Fair Association: 2024