The origin of the name "Whiterock" is uncertain, but it may come from a white aplite seam found in the local granite. Rev. John Livingstone, chaplain to the Countess of Wigtown, was invited to
Killinchy by Sir James Hamilton in 1630 and led a congregation at the earlier church on the site of the current parish church. In 1636, he attempted to sail to America on the Eagle Wing but returned and later moved to
Stranraer, where his Killinchy congregation visited him from
Donaghadee.
Michael Bruce, a later minister, was arrested in Scotland for preaching illegally and chose exile in Killinchy, effectively returning home. The church cemetery contains the graves of Bruce's children and 1798 rebellion figures James McCann and Dr. James Cord. Killinchy Presbyterian Church has a cruciform layout, and nearby
Sketrick Castle dates to the 1400s. The area's history is featured in James Meikle’s 1839 novel Killinchy in the Days of Livingstone and W.G. Lyttle’s 1890 book Daft Eddie and the Smugglers of Strangford Lough, which inspired a local restaurant’s name.
Lightship Petrel The
lightship Petrel, built in 1915, was part of the Seabird-class of lightships and was constructed using riveted iron and steel. Petrel operated primarily at the
Blackwater Bank station off the coast of Wexford, where it served as a floating lighthouse. After being decommissioned in 1968, the vessel was sold to Hammond Lane Foundries in Dublin. The Down Cruising Club later purchased the ship for £2,049.50 and moved it to Ballydorn in Strangford Lough. Since then, it has been used as the club's headquarters. Modifications have been made to support its new function, including the installation of electricity, heating, and communication systems. Petrel remains afloat at this location. ==Archeology==