Siegel kept notes, photographs, journal entries, and newspaper clippings from her trip to Mexcio and Nicaragua in 1986 to 1987 where she lived and worked with Latin American feminist organizations.

Siegel also collected photo albums with photos she took of activist movements and events and her life in Oregon and San Francisco.

Publications and resources include various news articles, essays, educational material, poetry, art, and interviews on women and lesbian studies, environmentalism, and Judaism.

As a writer, Siegel saved drafts of her stories and poems, journals, and publsihed works in newspapers and magazines.

Siegel's correspondences are made up of letters and postcards to editors and publishers, friends and family, and lesbian activists.

Her cassettes consist of lectures on Jewish feminism, interviews with women, and history of the counterculture movement.