One inspiration for the character of Rosalind in Magruder's was a performer named Bobby Cork, who worked as a half-and-half in New York City in the 1940s and 1950s. Bobby advertised himself as a hermaphrodite, but it seems widely acknowledged at this point that the act was a gaff (fake). Daniel P. Mannix's book, We Who Are Not As Others, maintains that Bobby was a "real ladies man," which, hmm. OK, sure, why not?
Regardless, I love these pictures and I love the twinkle in his eye. I can only hope that he was genuinely having as much fun as these photos suggest.