2021 Relativity
2021 Relativity
Johannes Kotvis(21 Dec 1812 - 24 Mar 1895)
Maria Leenhouts(18 Aug 1810 - 15 Feb 1896)
m. 12 Sep 1864
William Kotvis
Margreta Postma
b. 1 Aug 1844, Schoondijke, Zeeland
d. 28 Mar 1926, Grand Rapids, MI
b. 10 Aug 1843
d. 9 Nov 1926, Grand Rapids, MI