Jan Tol was born 13 March 1904 in Hoorn, North Holland, Netherlands to Jacob Tol (1870-1920) and Marijtje Spek (1872-1949) and died 3 January 1992 Hoorn, North Holland, Netherlands of unspecified causes. He married Alida Keizer (1905-1953) 1 June 1933 in Hoorn, North Holland, Netherlands. He married Anna Keizer (1909-1963) 1 August 1960 in Hoorn, North Holland, Netherlands. He married Marijtje Tool (1902-1993) 1 September 1964 in Hoorn.
Jan's first and second wifes, Alida and Anna, were sisters and his 7th cousins once removed; all descend from Pieter Laan (c1620-bef1686). His third wife was his brother's widow.
Jan Tol and Alida Keizer
Children
| Name | Birth | Death | Joined with |
| Rie Tol (1935-1995) | |||
| Jaap Tol (1937-) | 1937 Hoorn, North Holland, Netherlands | Riek Faas (1931-) | |
| Jan Tol (1938-2013) | |||
| Nicolaas H. Tol (1939-) | 5 December 1939 Hoorn, North Holland, Netherlands | 16 June 2021 Hoogkarspel | Martha C.M. Korver (1941-) |
| Aad Tol (1941-) | |||
| Kees Tol (1943-) | |||
| Lien Tol (1945-) | |||
| Alie Tol (1946-) | |||