Family: William John Christian KLAMM / Phila Martha McDUFFEE (F1722)
m. 31 Aug 1916Charles Sumner McDUFFEE (1856-1928) 
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Adelia Phila LORD (1856-1945)
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Robert Jacob MACDUFFEE (1879-1960)  |
| Sumner Vere McDUFFEE (1881-1959) |
| Harry Lawrence McDUFFEE (1883-1943) |
| Leroy Marshall MACDUFFEE (1885-1971) |
| Clyde Hopkinson McDUFFEE (1889-1955) |
| Clara Lord McDUFFEE (1889-1890) |
| Cora Ella Adelia McDUFFEE (1898-1983) |
| Phila Martha McDUFFEE (1894-1979)
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| William John Christian KLAMM (1888-1976) |
| William John Christian KLAMM, Jr. (1917-2008) |