Familie: Håkon Isaachsen Willoch (F155171)
 | Einar Isaachsen Willoch (1841-1921) 
|
 | Hannah Isaachsen (1861-1929)
|
| Arne Isaachsen Willoch (1883-1954) |
| Odd Isaachsen Willoch (1885-1940) |
| Helga Isaachsen Willoch (1888- ) |
| Gunnar Isaachsen Willoch (1890-1976) |
| Hall Isaachsen Willoch (1891- ) |
| Håkon Isaachsen Willoch (1896-1955)
|
| Erik Isaachsen Willoch (1922-1991)  |
| Jan Isaachsen Willoch (1924-2000) |
