Hedwig Rothschild was born in Giessen on September 2, 1883, the daughter of Israel Rothschild and his wife Emma, née Klogal.

Siegbert Lewinsohn was born in Berlin on July 30, 1923, the son of Martin Lewinsohn and his wife Erna, née Sass.

Martin Lewinsohn was born on September 9, 1898 in Schivelbein/Pomerania as the son of Adolf Lewinsohn and his wife Rosette née Gottschalk, he also had a brother Georg.

Erna Sass was born on June 30, 1897, the daughter of Saul and Martha Sass in Guttstadt, East Prussia.

Hedwig Lewin was born in Szczecin on February 23, 1894, into a Jewish family.