Julius' parents are unknown. He is a near contemporary of Edith Borinski, and they are the only Borinskis I know of who were born in Trebnitz, so I have tentatively assigned him to Edith's parents. If this relationship is correct, then his older namesake, of Breslau, Charlottenstrasse 1, who witnessed his 1932 marriage, is his uncle.

Julius and Martha Borinski geb. Frost were deported from Breslau to Lublin on 03.05.1942.