He was the son of John Coulter Hamilton, an Irish immigrant who came to New York in 1864, and Margaret Scott (Vance) Hamilton.
32 in Manhattan, and graduated from New York Evening High School in 1892, and B.A.
While teaching, he took graduation courses, and received the degrees of M.A.
On October 11, 1904, he married Georgiana Elizabeth Montgomery, and they had six children.
He was an alternate delegate to the 1928 Democratic National Convention.