Gezin: Thomas Willems Koolhaas / Atje Jacobs Roorda (F3370)
getr. 17 feb 1825 | Willem Jans Koolhaas (1760-1833) 
|
 | Gryttje Tomas (1766-1809)
|
| Jan Willems (1787- ) |
| Eeke Willems Koolhaas (1791-1837)  |
| Lea Willems Koolhaas (1798-1873) |
| Jacob Bottes Roorda (1762-1827)
|
| Grietje Martinus Lauerman (1761-1831)
|
| Botte Jacobs Roorda (1788-1809) |
| Attie Jacobs Roorda (1789- ) |
| Martinus Jacobs Roorda (1792-1829) |
| Dirkje Jacobs Roorda (1794- ) |
| Dirkje Jacobs Roorda (1795-1833) |
| Wytske Jacobs Roorda (1799-1831) |
| Jacob Jacobs Roorda (1806- ) |
| Thomas Willems Koolhaas (1802-1858)
|
| Atje Jacobs Roorda (1801-1868)
|
| Grietje Thomas Koolhaas (1826-1905) |
| Eeke Thomas Koolhaas (1827-1827) |
| Durkje Thomas Koolhaas (1829-1880) |
| Jacob Thomas Koolhaas (1831-1926) |
| Eeke Thomas Koolhaas (1834-1915) |
| Willemke Thomas Koolhaas (1836-1840) |
| Willem Thomas Koolhaas (1840-1842) |
| Willemke Thomas Koolhaas (1843-1924) |