2021 Relativity
2021 Relativity
m. 12 May 1877, Kollumerland, Friesland
Harm Jans Hamstra
Martje Spoelstra
b. 31 May 1853, Burum, Kollumerland, Friesland
d. 20 Jan 1940, Grand Rapids, MI
b. 7 Feb 1855, Burum, Kollumerland, Friesland
d. 10 Feb 1921, Grand Rapids, MI
Children
Kate Hamstra(7 Nov 1888 - 4 Dec 1976)