Board of Directors


Sue Piazza was born and raised in East County and graduated from Sam Barlow High School. She owns Bucket List Travel Tours and Piazza Patrick Coaching, and she is a member of the Gresham Area Chamber of Commerce, Gresham Rotary, and Easthill Church. Sue joined the board in 2021.


Sandra Rich joined the GHS Board of Directors in 2022. In over 38 years of living in Gresham, she raised two sons and is now a happy grandmother of two. She was the president of Golf Event Management, Inc. for 25 years and is a member of the Gresham Area Chamber of Commerce, 100+ Women Who Care East County, and the board of Gresham Arthur Academy.


Leslie Radke has spent 10 years on GHS board, working as treasurer for the last four years. Before that, she had a 36-year banking career in Gresham. Her other local volunteer work includes: 1989 charter member of the Gresham Lions Supper Club, Eastco Diversified Services board member since 1996, Art Walk/Gresham Outdoor Public Art treasurer for 17 years, and treasurer for the Historic Downtown Business Association for 16 years. She enjoys giving back to the community that supported her career and allowed her to prosper.

Board Member

Fred Gilbert is new to the Gresham area, having moved to the area with his wife Teresa only three years ago. Fred holds a Masters Degree in History, and is retired after twenty years working in higher education. His hobbies are music, woodworking and exploring the beautiful state of Oregon. He joined the board in 2021.

Board Member

Karen Johnston

Board Member

Erica Keathley

Board Member

Carol Nielsen

Board Member

Terry Nishikawa

Board Member

Lon Shiiki

Board Member

Eellitta Stone, a retired teacher, began volunteering at the Museum in 2009. She published the newsletter for several years and joined the Board in December of 2010. She does research and serves on the Collections Committee.

Board Member

Martin Stone


Museum Director

A lifelong Gresham-area resident, Silvie Andrews has been involved with GHS since 2015 and has served as museum director since 2021. She previously worked as a museum cataloger at the Oregon Historical Society and collections manager at Pittock Mansion. She holds a Bachelor of Arts in history from New York University and a Master of Arts in history from Portland State University.

Public Historian

Stephanie Vallance works as Public Historian, managing the Gresham Oral History Project. She received a Bachelor’s in History from the University of San Francisco and a Master’s in Public History from Portland State University. As a fifth-generation Oregonian, her research and interest centers on amplifying underrepresented voices in the region.