Backus Family History
Roy Lucius Backus and Emma Lee Mammen Family
m. Abt 1928
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 | Lucius Monroe Backus (1867-1917)
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 | Mina A. Atkins (1872-1944)
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 | Ernest Edgar Backus (1892-1898) |
 | Lois Anna Backus (1894-1973)  |
| Lester Frank Backus, Sr. (1896-1993) |
| Christian Edward Mammen (1849-1930) |
| Johanna Elizabeth Eiler (1855-1931) |
| August Johnson Mammen (1876-1952) |
| John H. Mammen (1879-1935) |
| Edward Christian Mammen (1881-1946) |
| Frederick W. Mammen (1883-1946) |
| Lizzie A. Mammen (1886- ) |
| Mary C. Mammen (1888- ) |
| Emma Lee Mammen (1891-1938)
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 | Roy Lucius Backus (1890-1975)
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