Jacob Bernstein

Jacob Bernstein was an American chess master.
Born into a Jewish family in Kaunas, Lithuania, he lived in New York. He won three consecutive New York State Chess Championships, and shared 1st with Herman Steiner in 1929, but lost a tiebreak to him.
He also tied for 8–9th at New York 1913,
tied for 5–6th at New York 1915, tied for 7–8th at New York 1916,
and lost a match to Abraham Kupchik at New York 1916.
After World War I, he tied for 3–6th at New York 1922,
took 13th at Carlsbad 1923,
and tied for 7–10th at Pasadena 1932.