Family: Roy Hans Neilsen / Ruth Mary Williamson (F423)
 | Peter Petersen Nielsen (1865-1928) 
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 | Mabel Rose Stone (1872-1966)
|
Ivy Eleanor Neilsen (1896-1958)  |
 | Ray Jens Neilsen (1905-1997) |
| Ada Ellen Neilsen (1910-1927) |
| Ena Mabel Neilsen (1916-1965) |
| John Patrick Williamson (1862-1911) |
| George William Williamson (1895-1948) |
| Violet Isabel Williamson (1902- ) |
| Eleanor Dorothea Williamson (1904-1963) |
 | Roy Hans Neilsen (1899-1944)
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 | Ruth Mary Williamson (1893-1965)
|
 | Ronald Roy Neilsen (1929- ) |