Lawrence married Emma M. Wise on 23 Apr 1885. Emma (daughter of Johannes Jakob Weis Wise and Mary A. Knapp) was born on 13 Feb 1865 in Randolph Township, Portage County, Ohio, USA; died on 7 Aug 1944 in Akron, Summit County, Ohio, USA. [Group Sheet] [Family Chart]

1. Augusta C. Knapp was born on 22 Jun 1885 in Randolph Township, Portage County, Ohio, USA; died on 8 Feb 1953 in Randolph Township, Portage County, Ohio, USA.
2. Jennie M. Knapp was born on 18 Aug 1888 in Randolph Township, Portage County, Ohio, USA; died on 7 Jul 1961 in Akron, Summit County, Ohio, USA.
3. Alice Elizabeth Knapp was born on 25 Apr 1891 in Randolph Township, Portage County, Ohio, USA; died on 26 Jul 1960 in Akron, Summit County, Ohio, USA.
4. Oscar John Knapp was born on 19 Sep 1893 in Randolph Township, Portage County, Ohio, USA; died on 15 Apr 1959 in Randolph Township, Portage County, Ohio, USA.
5. Robert John Knapp was born on 15 Oct 1899 in Randolph Township, Portage County, Ohio, USA; died on 5 Jul 1934 in Akron, Summit County, Ohio, USA.
6. Vernon L. Knapp was born on 11 Dec 1901 in Ohio, USA; died on 31 Oct 1986 in Wadsworth, Medina County, Ohio, USA.

Johannes married Margaretha Amick. Margaretha was born in 1835 in Darmstadt, Hessen. [Group Sheet] [Family Chart]