Jonathan married Julie Ann CASEY on 28 Aug 1981 in Chanhassen, MN. USA. Julie (daughter of Roger CASEY and Nora Harriet ONGSTAD) was born on 31 Oct 1955 in Minneapolis, Hennepin County, Minnesota, USA. [Group Sheet] [Family Chart]

1. Brenner Casey SANDBERG
2. Tessa Kathryn SANDBERG