Lake was known as "Mary" after her marriage to Joseph John Tobias on 15 May 1945 in Ypsilanti, Washtenaw, Michigan.
According to the U.S., Social Security Applications and Claims Index, 1936-2007 and Michigan, U.S., Death Index, 1971-1996, Mary passed away on 16 September 1994 in Dearborn, Wayne, Michigan.
Sources are available on her FamilySearch Profile:
https://www.familysearch.org/tree/person/details/LB33-Z5D