She went by Rosemary most of her life. She was first married to Mr. Simpkins, and had daughter Delores (b. 1937) who was living with her parents in the 1940 census. She was listed as Rosemary Simpkins (23, IL) in Toluca, divorced and working as a seamstress in a clothing factory, with a high school education. It says she had been living in LaSalle Co, IL in 1935.
Rosemary Hahn of Toluca, IL in 1968, married to Harold Hahn (1919-1999) on 25 Dec 1943.