Notes for LEE (nee LEON YANISHEFSKY) DAVIDSON JANIS, DR.:

Son of David and Dora N (Lerner) Yanishefsky.
Born: January 5, 1916 in probably Brooklyn, Kings County, New York.
Died: March 26, 1959 in Brooklyn, Kings County, New York.
Buried: Montefiore Cemetery, Springfield Gardens, Queens County, New York.
Census:
January 20, 1920 - 366 Snediker Avenue, Assembly District 2, Supervisor's District 3, Enumeration District 1692, Brooklyn, Kings County, New York.
June 1, 1925 - New York State - 368 Snedicker Avenue, Assembly District 2, Block 10, Election District 46, Brooklyn, Kings County New York.
April 22, 1930 - 559 Alabama Avenue, Assembly District 2, Block M, Supervisor's District 32, Enumeration District 24-1218, Brooklyn, Kings County, New York.
April 11, 1940 - 559 Alabama Avenue, Assembly District 2, Block M, Supervisor's District 47, Enumeration District 24-84, Brooklyn, Kings County, New York.
April 11-12, 1940 - 332 East 12th Street, Assembly District 8, Block 7, Supervisor's District 14, Enumeration District 31-644, Manhattan, New York.
Married: (1) Lady Elisabeth H Peel about December 3, 1938, Manhattan, New York. (Marriage License: December 3, 1938, #20374; Divorce: about 1941.)
(2) Jane Elizabeth Ross bout May 13, 1944 in New York. (Marriage License: May 13, 1944, Manhattan, New York #12276; Divorce: About 1954.)

Verify. Jeanne has him changing his name and getting married in 1938 (found doc) then why is he listed as single w/parents and married w/wife in 1940 censuses?