Family: Peter Andrew Wahl / Helen Fredericka Singer (F31970)
m. 25 Apr 1900John Wahl (1847-1917) 
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Barbara Letzelter (1851-1937)
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Hannah Wahl (1874-1924)  |
| Joseph Henry Wahl (1877-1953) |
| Veronica Barbara Wahl (1878-1967) |
| Charles John Wahl (1880-1952) |
| Ignatius Wahl (1884-1970) |
| Mary Barbara Wahl (1882-1940) |
| Victoria Helena Wahl (1887-1988) |
| Agnes Catherine Wahl (1890-1966) |
| Johannes M. Singer (1837-1907)
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| Margaretha Katherina Cornet (1852-1935)
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| Sybilla Singer (1874-1949) |
| Rose Catherine Singer (1876-1949) |
| John Michael Singer (1881-1950) |
| Aloysius Singer (1884-1897) |
| Frances Angela Singer (1887-1968) |
| Clara P. Singer (1890-1979) |
| Ottillia Bertha Singer (1892-1965) |
| Elizabeth V. Singer (1895- ) |
| Isabelle E. Singer (1898-1969) |
| Helen Fredericka Singer (1873-1960)
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| Peter Andrew Wahl (1873-1952)
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| Elizabeth C. Wahl (1902-1987) |
| Mary Helen Wahl (1904-1992) |
| James Peter Wahl (1906-1970) |
| Rosalia Barbara Wahl (1910-2000) |
| Eleanor Olivia Wahl (1916-1996) |