Klaas Tol was born 29 June 1815 in Venhuizen, North Holland, Netherlands to Dirk Tol (1786-1856) and Antje Buurman (1790-1836) and died 6 October 1859 Venhuizen, North Holland, Netherlands of unspecified causes. He married Dieuwertje Commandeur (1821-1884) 1 February 1844 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Antje Tol (1845-1917) | |||
| Cornelis Tol (1848-1849) | |||
| Sijtje Tol (1850-1875) | |||
| Cornelisje Tol (1853-1878) | |||
| Cornelis Tol (1855-1910) | 2 April 1855 Venhuizen, North Holland, Netherlands | 25 July 1910 Venhuizen, North Holland, Netherlands | Aafje Vrucht (1850-1926) |
| Dirk Tol (1858-1915) | 5 February 1858 Venhuizen, North Holland, Netherlands | 19 March 1915 Lutjebroek, North Holland, Netherlands | Meinauwtje Doodeman (1860-1924) |
Footnotes (including sources)
| ‡ General |
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