Jeanne Thomas is a retired employee of Kaiser Industries and a longtime supporter of Save Mount Diablo (SMD), serving on the Development Committee from 2006 to 2014. Thomas was born in Oakland, California, in 1929. She attended Mills College before beginning work at Kaiser Industries. Thomas began contributing to SMD in 1989 and has been a major donor since that time. In this interview, Thomas discusses growing up in Oakland, California, including exploring nature; attending Mills College; her work history at Kaiser Industries; meeting her partner, Bob Adams; her early retirement and joining a women's hiking group; her early interactions with SMD, including donations and volunteering at the organization's office; joining SMD, including volunteers like Susan Watson, leadership, cofounder Mary Bowerman, longtime staff member Seth Adams, land acquisitions and stewardship, fundraisers like the Forever Wild Capital Campaign and Moonlight on the Mountain, education and outreach, resilience during COVID-19, and SMD's expanded mission; her personal involvement in SMD, including serving on the Development Committee, supporting particular events, serving as a liaison to the retirement community of Rossmoor, receiving the Mountain Star Award, and hosting birthdays on SMD properties; hiking on Mount Diablo and photographing wildflowers; development in the Bay Area; and reflections on her personal contributions to SMD.