Marijtje Tensen was born 23 January 1841 in Andijk, North Holland, Netherlands to Jan Tensen (c1801-) and Jantje Zwagerman (1811-1891) and died 17 June 1910 Wervershoof, North Holland, Netherlands of unspecified causes. She married Cornelis Keizer (1840-1889) 16 February 1865 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Meindert Keizer (1866-) | |||
| Johannes Keizer (1867-1951) | |||
| Dirk Keizer (1869-1953) | |||
| Jantje Keizer (1873-1907) | |||
| Trijntje Keizer (1880-1909) | |||
Siblings
Residences
Footnotes (including sources)
| ¶ Death |