Julius married Andrea Olava Margrete Bolette Schroeter on 16 Sep 1866. Andrea (daughter of Hans Normann Schroeter and Abelone Bronn) was born on 14 Dec 1832 in Drøbak, Norway; died before 1942. [Group Sheet] [Family Chart]

1. Julie Usler was born on 18 Jun 1867 in Kongsberg, Norway; died before 1977.
2. Kristian Usler was born on 01 Jul 1868 in Kongsberg, Norway; died before 1978.
3. Lydia Usler was born on 08 Aug 1870 in Kongsberg, Norway; died before 1980.
4. Normann Usler was born on 21 Nov 1875 in Kongsberg, Norway; died before 1985.