Vilhelm married Ida Josephine Fredrikke Lagoni on 27 Apr 1864. Ida (daughter of Otto Frederik Christian Lagoni and Edle Dortothea Holm) was born on 15 Jan 1838 in Grønderup, Brahetrolleborg, Denmark. [Group Sheet] [Family Chart]

1. Ingeborg Kramer was born on 15 Feb 1868 in Odense, Fyn, Denmark.
2. Oluf Kramer was born on 03 May 1871 in Odense, Fyn, Denmark.
3. Sigurd Nørgaard Kramer was born on 29 Dec 1872 in Odense, Fyn, Denmark.
4. Einar Lagoni Kramer was born on 18 Aug 1869 in Odense, Fyn, Denmark; died on 22 Apr 1873.