Family: Peter Friedrich Martens / Johanna Henrietta Walker (F501103)
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 | Peter Friedrich Martens (1851-1904) |
 | Johanna Henrietta Walker (1858-1939) |
| Fred P. Martens (1878-1934) |
| Charles Louis Martens (1880-1978)  |
| George Martins (1882- ) |
| Henry Theodore Martens (1884-1932) |
| Bertha Henrietta Martens (1885-1923) |
| William John Martens (1888- ) |
| Albert Bernard Martens (1891-1956) |
| Walter Theodore Martens (1894-1964) |