My David family came from Eperjes, Saros, Hungary (now Presov, Slovakia).They immigrated to New York in the 1880's and 90's.There were 3 Brothers: Frank C. David, Charles L. David, and Stephen David.
Frank C. David was a funeral director, Moved from Manhattan to Astoria, Queens in the 1920's, Had 6 kids born in New York:
August(my grandfather) 1901 - 1932
Tillie "Stephanie" 1903 - 1964
Julius 1905 - 1968
Geza Anna "Gisella" b. 1909
Peter 1911 - 1995
William 1914 - 1930

Charles L. David had 5 kids born in New York:
Rudolph A. b. 1901
Charles b. 1902
Julius b. 1912
Irene b. 1918
William J. 1918 - 1934

Stephen David married a woman named Johanna "Jeanette" Novak and moved to Boston or Montreal around 1917.

Hope this helps you. Maybe we're kin.
Brian