The child of Jewish immigrants from Russia, Polner grew up in the Brownsville neighborhoods of Brooklyn.
[1][2] He graduated from Samuel J. Tilden High School, City College of New York (1950), earned an M.A.
[1][2] He taught for 10 years in a high school in Brooklyn, worked as an adjunct professor at several area colleges in the New York area, and served as executive assistant to Harvey B. Scribner, the first chancellor of the New York City Public Schools.
[3] He moved to Great Neck, New York, in 1961 with his wife Louise (Greenwald) Polner, and lived there for the rest of his life.
[2][4] Polner was a pacifist, although he allowed that the Holocaust was a difficult case, "It's the hardest question of all," he said, "and I'm not sure there's an answer.