 An airline passenger list, flight CBA 611 from St. Maarten to Charlotte Amalie, VI, on 10 Sep 1962, gives a birthdate of 6-24-1910, in Illinois (ancestry.com).A U.K. Incoming Passenger list (ancestry.com) for the RMS Queen Elizabeth, from New York to Southamptom, arriving 19 Aug 1958, gives a birthdate of 24.6.10.The Social Security Death Index records the date of birth of a "Martha Stelling" (Sleeper's third husband's surname) who died in March 1983 in Beaufort County, South Carolina as June 24, 1910.