| Father | Male William Williamson |
| Born | 30 Jun 1800 | Netherlands |
| Died | 05 Oct 1886 | Freedom, Outagamie Co, Wisconsin |
| Buried | ||
| Married | 13 Feb 1823 | Elst, Gelderland, Netherlands |
| Father | Peter Williamsen | F129220 Group Sheet | |
| Mother | Cornelia Glover | F129220 Group Sheet | |
| Mother | Female Hendrina Jansen |
| Born | 29 Mar 1797 | Nijmegen, Gelderland, Netherlands |
| Died | 1870 | Freedom, Outagamie Co, Wisconsin |
| Buried | ||
| Father | Johannes Janssen | F129221 Group Sheet | |
| Mother | Berendina deBeijer | F129221 Group Sheet | |
| Child 1 | Male Peter Williamson |
| Born | 22 Apr 1823 | Elst, Gelderland, Netherlands |
| Died | 15 Feb 1907 | Nashville, Davidson Co, Tennessee |
| Buried |
| Child 2 | Female Baby Willemsen |
| Born | 02 Oct 1824 | Elst, Gelderland, Netherlands |
| Died | 02 Oct 1824 | Elst, Gelderland, Netherlands |
| Buried |
| Child 3 | Male John Williamson |
| Born | 23 Sep 1825 | Elst, Gelderland, Netherlands |
| Died | 10 Dec 1903 | Freedom, Outagamie Co, Wisconsin |
| Buried | St Nicholas Cemetery, Freedom, Wisconsin |
|
| Spouse | Anna Lennon | F46248 | |
| Married | ||
| Child 5 | Female Cornelia Theodora Willemsen |
| Born | 31 Oct 1831 | Elst, Gelderland, Netherlands |
| Died | 28 Mar 1874 | Kimberly, Outagamie, Wisconsin |
| Buried | St John Cemetery, Little Chute, Outagamie, Wisconsin |
|
| Spouse | John Geenen | F1098 | |
| Married | 27 Sep 1858 | St John Nepomucene Church, Little Chute, Outagamie, Wisconsin |
| Child 6 | Female Johanna Williamson |
| Born | 30 Mar 1833 | Elst, Gelderland, Netherlands |
| Died | Feb 1921 | |
| Buried | St Nicholas Cemetery, Freedom, Wisconsin |
|
| Spouse | Cornelis Hendrikus Bosman | F41178 | |
| Married | ||
| Child 7 | Female Albertina Williamson |
| Born | 12 May 1835 | Elst, Gelderland, Netherlands |
| Died | 31 Mar 1894 | Freedom, Outagamie Co, Wisconsin |
| Buried | St Nicholas Cemetery, Freedom, Wisconsin |
|
| Spouse | Anton Smits | F45909 | |
| Married | 1861 | |
| Child 8 | Male Theodore Williamson |
| Born | 09 Oct 1839 | Elst, Gelderland, Netherlands |
| Died | 1858 | Freedom, Outagamie Co, Wisconsin |
| Buried |