Hi Jim,
How did this story originate, "oral history" from your father?
Under the name Edna HILL, she does not appear in 1940 NYC DEATH transcriptions in any NYC county, searchable online. I tried variations. It appears there is no immediate proof of your story and this requires a deeper investigations, such as...DIRECTORY search to find a listing for her circa 1940, NYT Obit search, and various other methods, depending upon the two mentioned.
I tried clicking on your name, but you only accept messages via Rootsweb. Click on my name for my email address.