Gerhard Heinrich Kempker
- Born: 6 Jun 1834, Hanover, Germany
- Marriage (1): Maria Gertrude Menke in May 1857 in St. Paul, Lee, Iowa
- Died: 2 Mar 1907, St. Paul, Lee, Iowa at age 72
- Buried: St. Paul, Lee, Iowa
Another name for Gerhard was Garrett, Henry Gerhard.
Gerhard married Maria Gertrude Menke, daughter of Gerd Herm Tobe and Margaretha Maria Adelheid Menke, in May 1857 in St. Paul, Lee, Iowa. (Maria Gertrude Menke was born on 26 Dec 1839 in Schwagstorf, Hanover, Germany, died on 21 Feb 1921 in St. Paul, Lee, Iowa and was buried in St. Paul, Lee, Iowa.)