A name built from initials
The four ironmasters
In 1682 four men — Goodwin Swift, Robert Saunders, Richard Darling, and Richard Barry — took a lease on land in this corner of north-west Cavan and established an ironworks. The village that grew around the works took its name from their surnames: Sw (Swift), and (Saunders), Ling (Darling), Bar (Barry). Jonathan Swift — whether a relative of Goodwin Swift or simply a well-travelled observer — recorded this etymology in a 1728 essay. The ironworks ran on charcoal smelting, which consumed the surrounding oak forest at a rate the landscape could not sustain. When the timber ran out in the early 1800s, the works closed. The townland where the furnaces once stood is still called Furnaceland. The four men who named the place are otherwise forgotten.
Taking the waters in Cavan
The sulphur springs
Swanlinbar had mineral springs strong enough to attract a seasonal resort trade in the late 18th and early 19th centuries. The waters were described as containing sulphur, sea salt, earth, and fossil alkali — a combination that Georgian medicine considered powerfully restorative. Visitors arrived from April to September, took lodgings in the village, and followed the regimen of drinking and bathing that was standard practice at spa resorts across Britain and Ireland. At the time, Swanlinbar's springs were considered the most potent in County Cavan. The resort was never on the scale of Lisdoonvarna or the English spa towns, but it had a real season and a real clientele. By 1824 the fashion was declining. By 1836 the trade had mostly stopped. Nothing marks the spring sites now.
Twenty-two houses gone in one night
The fire of 1786
In 1786 a fire destroyed twenty-two houses in Swanlinbar. In a small settlement in that period, twenty-two houses was most of the village. The cause is not recorded with any certainty that survived into the present. The village was rebuilt. Given that the ironworks were still operating and the spa trade was building, there was economic reason to rebuild quickly. The event left no monument and is not marked locally. It is one of those facts that surfaces in historical accounts and then submerges again, leaving no trace in the landscape.