As Jacqueline Sharpe, she released an album of antiwar songs in 1966 entitled No More War. Steiner is a Linguist and demonstrated this interest in 1991 with her album Far Afield: Songs of Three Continents.
She married Arnold Berman (the couple divorced in 1974) and was active in the folk scene in the 1950s and 60s, singing (as Jackie Berman) with Pete Seeger and others on Hootenanny Tonight!, recorded in 1954 and released by Folkways Records in 1959.
Steiner joined the Norwalk, Connecticut branch of the African American civil rights advocacy group the National Association for the Advancement of Colored People (NAACP) in 1991, serving several years as the chapter's secretary and receiving the Roy Wilkins Leadership Award for Service from the state NAACP in 2010.
