Just in case the parents were Thomas & Martha McCoy-
McCoy Martha of Aghinlark county Tyrone widow died 23 August 1944 Administration Belfast 18 January to Robert McCoy electrician. Effects £224 10s.
McCoy Thomas of Aghinlark county Tyrone farmer died 22 April 1952 at Tyrone County Hospital Omagh county Tyrone Probate Belfast 10 June to John McCoy farmer. Effects £221 19s. 3d.
Aghinlark is northeast of Fivemiletown.
http://www.townlands.ie/tyrone/aghinlark/added...
Martha McCoy aged 81 so born c1863

Thomas McCoy age 58 so born c1896
Looking better-
Thomas McCoy married (9 June 1926 Omagh district) Martha Moore