It is part of the Roman Catholic diocese of Charlottetown Prior to 1870, residents of Lot 11 traveled to St. Anthony parish, Cascumpeque, a journey which involved a ferry crossing and nine miles travel over land, or in winter time, a horse and sleigh ride across the ice.

It was completed in 1873, although by Christmas Eve 1870, construction was far enough advanced that midnight mass was offered on a temporary altar.

[2] The name for the church was chosen due to the predominantly Irish pioneer settlement of the area.

The church has a Gothic Revival style with a central tower capped with an elaborate pointed spire topped with a cross.

The roof of the spire has decorative high narrow dormers on each of its four sides.

Extensive renovations were made to the building in 1913–14, when a side vestry was added.