Tabanus: I was hoping to find him in the school yeearbooks, but it turns out I have no access to those from New York University in Manhattan. It seems he studied there. Else, for now there too many "Samuel S Cohen" in the sources to be sure of which is which.
His name was Samuel S. though. A few sources:
"Samuel Cohen, a member of the champion team of Commercial High School, carried oft first honors in the weekly rapid …. at the Brooklyn Chess Club” (Brooklyn Daily Eagle, 15 Jan 1925, p. 25) (NB. Although unlikely, this may be Stanley S. Cohen, another chess playing student at the Columbia University.)
“N. Y. University wins chess championship. New York, Dec. 03 (AP) – For the third time in successive years, New York University today won … Samuel S. Cohen of the N. Y. U. team completed the tournament with four straight match victories. His team mates were I. Horowitz, M. Pinkus and J. Fischman.” (Boston Herald, 31 Dec 1926, p. 2)
“Manhattan Chess Club … S. S. Cohen” (Prensa, New York, 2 May 1927)
“Samuel S. Cohen and George N. Treysman. a pair of New York experts, were tied for the leadership today as the championship tournament of the American Chess Federation reached he fourth round.” (Brooklyn Daily Eagle, 25 Aug 1937, p. 20)
“Chicago, September 1. – David S. Polland, New York State champion, moved into second place in the masters’ section of the American Chess Federations’s title tournament by defeating Charles Jaffe … Following Steiner and Polland in the standings were: … Samuel S. Cohen, New York, 1 – 3” (Evening Star, 1 Sept 1937, p. C-1)
“The Chess Review … is a really fine magazine, the editors of which are Israel Horowitz and Samuel S. Cohen” (Plain Dealer, 2 July 1939, p. 11-B)