Julius van der Hal was the son of Samuel van der Hal and Kaatje Cohen. He won several medals for his athletic achievements.
H. Hamburger and J.C. Regtien, Sporen van een joods verleden in Noordwest Groningen (Bedum 1995) 24
This person is commemorated on a memorial in Usquert. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.