William Collins Whitney was born 5 July 1841 in Conway, Massachusetts, United States to James Scollay Whitney (1811-1878) and Laurinda Collins (1810-1908) and died 1 February 1904 New York City, New York, United States of unspecified causes. He married Flora Payne (1842-1893) 13 October 1869 in New York City, New York, United States.
|Offspring of William Collins Whitney and Flora Payne (1842-1893)|
|Leonora Whitney (1870-1870)|
|Harry Payne Whitney (1872-1930)||29 April 1872 New York City, New York County, New York, United States||26 October 1930 Portland, Maine, United States||Gertrude Vanderbilt (1875-1942)|
|Pauline Payne Whitney (1874-1916)|
|William Payne Whitney (1876-1927)|
|Olive Whitney (1878-1883)|
|Dorothy Payne Whitney (1887-1968)|