Willem Lootsteen was a son of Abraham Lootsteen and Roosje Zwart. He married 22 August 1940 in Amsterdam to Ester Cohen, a daughter of Benjamin Cohen and Sara van Kleef.
His siblings Kaatje, Esther, Mozes and Mina were also killed during the Holocaust.
City Archive of Amsterdam, archive card of Abraham Lootsteen and Ester Cohen.
Biography