Hello Thomas....You may already have the following information:

Margaret La Pointe provided the location of Philadelphia, PA as her birth place according to the California Passenger & Crew Lists, 1893-1957 via Ancestry.com.  Please to let me know if you may need a copy of the document.

Interestingly enough, Margaret La Pointe is listed under the Social Security Index with the SS# of 546701739.  She is noted under the California Death Index 1940-1997 with the SS# of 554381459.  You may want to consider, if you have not done this already, requesting the SS-5 Form for your Margaret La Pointe using both ss# numbers.  Perhaps one of them is actually her husband's original ss-#.  Perhaps the information that she provided on the SS-5 form might give you some clues to her parents.  Perhaps her death certificate might offer some clues as well.  I hope this helps! Allen