Lisa June Dufton 1962–1982 | | |
| | Robert Edward Dufton 1944–2006 Dorothy Lorraine Helm …–… Dawn Erla Lease 1958–2001 | | |
| | Helenann M Wilkens 1918–1973 Robert Edward Dufton 1916–1977 | | | | William Heyman Dufton 1892–1973 Lila Helen Clark 1891–1965 | | | | John Story Dufton 1869–1954 | | | | Elizabeth Sander 1837–1900 | | |
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