Durnion is quite an unusual name. There are only two in the current british telephone book for
Northern Ireland, both Fermanagh.
1) Coolcran, Tempo
2) Irvinestown, Enniskillen www.familysearch.org
has civil registrations for bmd's from 1864 up to the 1950's.
I would concentrate on Thomas Anthony as women marry and disappear on paper.www.familysearch.org
Terence Durnion born 18 Nov 1867 #0153 Tempo, Fermanagh
Fa: Thomas Durnion Mo: Saragh McGunes (could find very little with this spelling)
1760-1913 UK Chelsea Pensioners Service Records:
Terence Durnion est. birth year 1869 (close enough in Ireland) born Fermanagh
(You should be able to find service records through the National Archives who has partnered
with an organization with their records- pay website)
1901/1911 Census: No Terence Durnion in Ireland (could be spelling)www.census.nationalarchives.ie
Directories of Ireland:
1894 Thomas Durnien, Lisnaskea, R.S.O. Fermanagh
also B. Durnian, Tempo, S.O. Fermanagh (note two spellings, not sure what initials are for)
1881 & 1894: Lisnaskea, Fermanagh
Thomas Durnien, carpenter and cart maker
No luck with birth of Thomas Anthony Durnion.born 1914.