He was the son of Middleton Warnick (1845–1904) and Marion (Kellogg) Warnick (1849–1903). He graduated from Yale College in 1895. Then he studied law, was admitted to the bar in 1897, and commenced practice in Buffalo, but returned the next year to Amsterdam. On June 1, 1898, he married Jane Maria Greene, and they had two children.
He died on May 18, 1954, in a hospital in Amsterdam, New York.
- Official New York from Cleveland to Hughes by Charles Elliott Fitch (Hurd Publishing Co., New York and Buffalo, 1911, Vol. IV; pg. 365)
- The New York Red Book by Edgar L. Murlin (1903; pg. 100)
- SPENCER K. WARNICK in NYT on May 19, 1954 (subscription required)
- Bio at RootsWeb
|New York State Senate|
| New York State Senate
Jotham P. Allds