Rinske Adema (1873-1939) 
|
Frans Houkes (1900- )  |
| Dirkje Houkes (1905-1977) |
| Willem Houkes (1909- ) |
| Freerk Houkes (1916- ) |
| Lieuwke Douma ( -1969) |
| Marijke Houkes (1898-1954)
|
| Renske Douma (1922-1998) |
| Sjerp Douma (1923-1992) |
| Elizabeth Douma (1927-1967) |
| Eelke Douma (1930-2012) |
| Wiebren Douma (1932-2002) |
| Dirkje Douma (1937-2011) |
| Grietje Douma (1944-2002) |
