Cozzens attended the Rensselaer Polytechnic Institute from 1864 to 1867, but did not complete the degree course;[1] he was largely self taught as an artist.
[2] Apart from his marine painting, he was an illustrator for The Daily Graphic, Harpers Weekly, Our Navy magazine,[3] and others.
[1][4] He also illustrated books on yachting, in 1884 a series of his chromolithographs, taken from earlier watercolors were reproduced in the book American Yachts: Their Clubs and Races, by U.S. Navy Lieutenant James Douglas Jerrold Kelley[2] (J. D. Jerrold Kelley), published by Charles Scribner's Sons in 1884.
[1] This book was the first of a series of four, the most notable follow-up being, Typical American Yachts (1886).
[8] Cozzens was a long time resident of Livingston, Staten Island, where he died on 29 August 1928.