If you go to: freepages.history.rootsweb.com/~leighann/parishes/leswalt/leswalt2.html you'll find information on Leswalt and Lochnaw. There are the ruins of the Old Parish Church to the west of the village, and on the east side is its successor, Leswalt Parish Church (1827-8). I'm fairly sure that the Dumfries & Galloway Family History Society has published the Memorial Inscriptions of the cemetery.
you'll see photos of Leswalt village. The Dumfries & Galloway FHS havetranscribed and published the memorial inscriptions of Leswalt Old Kirkyard (£2.50). Their website is: