Glenderry National School was erected in 1874 under the supervision of E.C. Daly Parish Priest of Ballyheigue.

John Bowler was the first principal and by 1877 there were 96 students enrolled with separate classrooms for boys and girls.
A third schoolroom was added around the turn of the century and in 1939 the boys and girls schools were amalgamated.

The new school, Scoil Naomh Erc, opened in April 1963. Maitiu O Suilleabhain was the last principal of Glenderry National School and his son Muiris is the current principal at Scoil Naomh Erc.