Julius Aschenbrand was the son of Aron Aschenbrand and Johanna Aschenbrand. He had two sisters: Selma Aschenbrand who was born on January 11, 1906 in Frankfurt (Germany) and Malli Aschenbrand, who was also born in Frankfurt on October 30, 1911. Both sisters were murdered in Auschwitz on September 30, 1942.