Stanley Steingut was the son of Irwin Steingut, first generation American, himself the son an immigrant from Hamburg (Simon Steingut) who left his own prosperous family (his father and brother were bankers with their own firm in Hamburg) to emigrate to the United States sometime before 1886.
Stanley Steingut was born on May 20, 1920 in the Crown Heights section of Brooklyn to Irwin Steingut and Rae Kaufmann Steingut.