I found a little bit of information about Fannie Firstman
Born April 10, 1913 - location unknown
She received a SS# and may have been receiving Social Security
She may have been a naturalized citizen as her name occurs on a naturalization request in Illinois in 1927. She would have been around 14.
Her name may have been several things like Furstman for example - as an immigrant, may have changed her name.
On her SS account, it states that her last residence was 11354 Flushing, Queens, NY
That is all I have at this time. May she Rest in peace