New York, New York City Municipal Deaths, 1795-1949, Tabitha Cecil Kern, 01 Jun 1928; citing Death, Manhattan, New York, New York, United States, New York Municipal Archives, New York; FHL microfilm 2,056,681.
"Cecil Kern", United States census, 1910; Manhattan, New York City, New York; roll T624 1048, page 12B, line 73, enumeration district 1387, Family History film 1,375,061.