1872 - 1936 (64 years)
| 1. David John Douglas |
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| B: |
22 Feb 1872 |
| P: |
Ottumwa, Wapello County, Iowa |
| D: |
18 Jul 1936 |
| P: |
Denver, Denver County, Colorado |
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| 2. William John Douglas |
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| B: |
19 Feb 1842 |
| P: |
North Ireland |
| M: |
25 Feb 1869 |
| P: |
Monroe County, Iowa |
| D: |
11 Feb 1891 |
| P: |
Lodgepole, Cheyenne County, Nebraska |
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| 4. Unknown Douglas |
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| B: |
Bef 1842 |
| P: |
?Northern Ireland |
| M: |
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Yes, date unknown |
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| 3. Nancy Catherine Harbison |
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| B: |
12 May 1844 |
| P: |
Portland Mills, Indiana |
| D: |
23 Dec 1924 |
| P: |
Lodgepole, Cheyenne County, Nebraska |
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