It could still have the origin listed in the database (short form of
Audrey). Lots of nicknames and short forms get used as full names.
If you go to the
Audie link and click on 'Popularity' you'll see that it's definitely been used as a full name from time to time.
Some other nicknames popular as given names in the 1920s:
Willie (28th)
Joe (34th)
Billy (48th)
Bill (87th)
Jerry (102nd)
Eddie (107th)
Billie (160th)
Mike (167th)
Bennie (170th)
Pete (213th)
Teddy (333rd)
Jackie (338th)
Patsy (339th)
Ollie (343rd)
Andy (350th)
Danny (459th)
Abe (497th)
~Chrisell~
Proudly Australian
www.archaeochrisell.blogspot.com