"Bang" reportedly was her married name, not a stage name.
She was an acquaintance of Arlo Guthrie in Stockbridge, Massachusetts, and hung out with the people there who were later portrayed in the cast of Alice's Restaurant (1969).
She has a son named Jacob. Her mother, Dorothy Wener, died in 2013 at the age of 100.
She read for the part of Tooley in Travels with My Aunt (1972). Some sources report that Katharine Hepburn, who was cast in the lead, demanded that Bang be cast as Tooley and quit the production when her demand was denied by her friend George Cukor, the director of the picture, who cast the part with Cindy Williams.
As of April 2014, she is a member of the Bethel Synagogue in Minneapolis, MN.
Was raised by adoptive parents in New York City.
Her son, Jacob Wener, is owner of Modern Industry Design, a furniture design firm in Minneapolis.