The font itself is a seventeenth-century piece, modest in size, with a Latin inscription around its rim, brought here from Rathgoggin church when that building closed in 1960. But the square stone block beneath it is something else entirely: a carved pedestal, possibly thirteenth century in date, recovered from Cooliney House, with a human figure on each of its four faces, each standing under a rounded arch. One figure holds a shield and a sword; another raises its hands and may be wearing a crown. The two objects have ended up together by accident of circumstance rather than design, which gives the arrangement an quietly unsettling quality.

The church itself carries several centuries of revision within a single exterior. An inscribed stone on the west tower records that Sir William St. Ledger, Lord President of Munster, first built the church in 1633, and that his grandson Arthur, Lord Viscount Doneraile, rebuilt it in 1726. A prominent keystone above the east window is dated 1815, suggesting the nave was rebuilt again that year while the earlier tower was left standing at the west end, slightly off-centre to the south. That tower once had a spire, described in 1750 as having a guilded ball and weathercock, but it was blown down around 1825. The ring of six bells inside the tower was given to the church in 1889. A round-headed doorway in the tower's south wall has been cut into the frame of a larger, earlier doorway that is now blocked, leaving the ghost of the older opening visible around the newer one. Inside, three tiers of open wooden colonnades line the walls, rising to an open king-post roof, and the walls are covered with memorial plaques and tablets from the late eighteenth and nineteenth centuries, including a marble monument to the St. Ledger family dated 1759. A small porch on the north wall once served as the private entrance for the St. Ledger family of nearby Doneraile Court. The bell hanging in the porch carries its own inscription, recording that it was made in 1636 and repaired in 1700, making it older than the version of the church it now sits inside.