Hymen Rosenbloom's application for a Social Security card (SS5)
4 Feb 1954
1.  Here we see the spelling "Rosenbloom," rather than "Rosenblum" as on some of the other documents.
2.  In box 8 - Mother's full name before ever married- he writes "Ethel Beatrice (last unknown)"
Ethel Beatrice was not her name of course, but it what he named his daughter after his mother.
3.  The 1895 birth date is interesting.  We know it to be 1894 and in fact so did he.  I don't know where the 1895 came from, but I remember some discussion when he retired that he had to work an extra year because of an error in the Social Security documents.