Carl,

I see that the info is from The Social Security Applications and Claims Index.

I believe that her birth date, and names of her parents, would have been written on the original SS5 application by Norma herself.

Today Social Security cards are given to babies at birth, that was not the case back then.

Norma would have, most likely, filled out an SS5 at the time she began working.

There are errors in the Social Security index, so you may want to obtain Norma's original SS5 form.
https://www.ssa.gov/forms/ssa-711.pdf
The fee is $24. for a photocopy.

Of course, it is possible that someone filled out the SS5 for her.  Seeing a copy of the original SS5 will help you determine if it is her handwriting, or not.

Regards,

Sherri Bobish
Princeton, NJ