Wikipedia
Dergalt
Dergalt is a townland in County Tyrone, Northern Ireland. It is situated in the historic barony of Strabane Lower and the civil parish of Camus and covers an area of 488 acres. US President Woodrow Wilson's ancestral home is located in the townland.
The name derives from the Irish: dearg alt (red glenside).
The population of the townland declined during the 19th century:
Year
1841
1851
1861
1871
1881
1891
Population
217
175
168
114
111
100
Houses
43
34
32
27
24
22