 Baumgardt was one of five members of the Futurians allowed into the first World Science Fiction Convention in 1939 by Sam Moskowitz (the other four were Isaac Asimov, Richard Wilson, David Kyle, and Jack Robinson).While her pen name was "Leslie Perri", she was known to her friends as "Doë", pronounced "dough-ee".In addition to her short fiction, she contributed both artwork and written pieces to a variety of fanzines such as "Future Art", "Futurian News", "Le Vombiteur Literaire", "Mind of Man", "Mutant", and "Fantasy Fictioneer".