Ancestry has a data base called U.S., Social Security Applications and Claims Index, 1936-2007.

I have found someone in there transcribed as follows:

Nov 1942: Name listed as MARY GAMBOLD ANDERSON; Jan 1946: Name listed as MARY MARIE DELARIA; Apr 1951: Name listed as MARY MARIE LONG; Dec 1955: Name listed as MARY MARIE KIRKENDALL; Jan 1959: Name listed as MARY MARIE SHEAHAN; 27 Nov 2001: Name listed as MARY M SHEAHAN

There are no original documents to look at.

I was wondering if there is any forum member who knows a bit more about this data base than I do ...

Does it mean that each name change is a marriage or is it possible that she just changed her name?

I have 2 marriages for her. The first is not listed above, presumably because it predates it and the 2nd was to Mr Anderson