These may be the deaths of two of Lawrence's daughters,
SocSec Death Index

Name: Marjorie L. Eckhardt
Last Residence: 89502 Reno, Washoe, Nevada
Born: 24 Dec 1919
Died: 28 Aug 2009
State (Year) SSN issued: New Jersey (Before 1951)


Name: Doris B. Bataille
Last Residence: 07922 Berkeley Heights, Union, New Jersey, USA
Born: 3 Apr 1921
Died: 6 May 2004
State (Year) SSN issued: New Jersey (Before 1951)