Individual Information
Jan Koolstra
Birth:
Abt 1870
of Friesland, Netherlands
FCID:6192:9020
Parents
Father:
Mother:
Marriage(s)
Hielkje Kingma
md. Abt 1892
of Friesland, Netherlands
Children
1.
Luitzen Jans Koolstra
b. 13 Apr 1894