Board of Directors
Board meetings are open to the public and the museum membership.
They are scheduled for every 3rd Tuesday at 4 PM unless otherwise noted.
Located at 5119 Jessie Street in Mariposa, CA.
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2026 Board Meetings:​​
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Tuesday, January 20th
Tuesday, February 17th
Tuesday, March 17th
Tuesday, April 21st
Tuesday, May 19th
Tuesday, June 16th
Tuesday, July 21st
Tuesday, August 18th
Tuesday, September 15th
Tuesday, October 20th
Tuesday, November 17th
Tuesday, December 15th
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For more information, please contact the Museum Director at (209)966-2924 or director@mariposamuseum.com.
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Board Members As Of 2026
Executive Committee
Board President
1st Vice President
2nd Vice President
Treasurer
Secretary
Janet Chase-Williams
Richard Westfall
Nicole Little
Keith Williams
Linda Parsons
Board Members
Board Member
Board Member
Board Member
Board Member
Board Member
Sylvia Emery
Gary Williams
Lois Martin
Joanna Ransom
Amanda Fane
Board Member
Board Member
Board Member
Board Member
Board Member
Patty McGregor
Trevor Dixon
Tanya Hughes
Shona Medinas
Dan Gross
Back Row: Keith Williams, Shona Medinas, Trevor Dixon, Tanya Hughes, Richard Westfall
Middle Row: Janet Chase-Williams, Nicole Little, Linda Parsons, Joanna Ransom
Front Row: Dan Gross, Sylvia Emery, Gary Williams
Not Pictured: Lois Martin, Patty McGregor, Amanda Fane
Interested in volunteering as a Board Member? Please contact us at (209)966-2924 or submit a letter of interest to director@mariposamuseum.com
Mariposa Museum & History Center Staff
Meet our museum staff! They are here to answer any questions you may have.
Please feel free to call at (209)966-2924 or email.
Museum Director
Amanda Adams
Amanda leads the overall vision and strategic direction of the Mariposa Museum. She oversees operations, partnerships, fundraising, and community engagement initiatives, working closely with staff, board members, and supporters to advance the museum’s mission and long-term sustainability.
director@mariposamuseum.com
Museum Coordinator
Joanna Ransom
Joanna manages the museum’s daily operations and visitor experience. She coordinates scheduling, communications, and administrative systems to ensure programs, events, and exhibits run smoothly and efficiently.
coordinator@mariposamuseum.com
Museum Education Coordinator
Rosalie Thurston
Rosalie develops and leads educational programs for schools, families, and community groups. She oversees curriculum development, workshop facilitation, and partnerships that support meaningful learning experiences rooted in the museum’s mission.
ed.coordinator@mariposamuseum.com
