Pieter Gijsman
- Born: 11 Apr 1841, Leiden, , Zuid-Holland, Netherlands
- Marriage (1): Maria Johanna Wassenaar on 18 Sep 1867 in Leiden, , Zuid-Holland, Netherlands
- Died: 30 Oct 1918, Leiden, , Zuid-Holland, Netherlands at age 77
Pieter married Maria Johanna Wassenaar, daughter of Dirk Wassenaar and Johanna Elisabeth Frank, on 18 Sep 1867 in Leiden, , Zuid-Holland, Netherlands. (Maria Johanna Wassenaar was born on 24 Dec 1839 in Leiden, , Zuid-Holland, Netherlands and died on 4 Dec 1869 in Leiden, , Zuid-Holland, Netherlands.)
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