SF Encyclopedia Picture Gallery
Charlie Holland, editor. Strange Feats & Clever Turns: Remarkable Specialty Acts in Variety, Vaudeville and Sideshows at the Turn of the 20th Century as seen by their Contemporaries (London: Holland and Palmer, 1998) [nonfiction: anth: Automata: illus/various: pb/"The Singing Strong Lady"]
Image courtesy of Clute Science Fiction Library at Telluride