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Thomas Coke Armitage (Tyre 1837-Seneca Falls, 12/07/1878) épouse (02/12/1856) Helen Amanda Syron (New York, [1837]-Waterloo, 25/01/1894). Descendance :
- George Edson Armitage (Waterloo, 14/11/1861-1930)
- DeWitt Clinton Armitage (Senece Falls, 03/08/1867-Fort Collins, 01/03/1949)
- Frederick Syron Armitage (Seneca Falls, 29/01/1874-Ecorse, 03/01/1933) épouse (Seneca Falls, 16/06/1897) Edith, Eleanor Smith ([1875]-).