Topographical Dictionary of Scotland, Samuel Lewis - 1851
KILCHATTAN-BAY, a village, in the parish of Kingarth, Isle and county of Bute, 6 miles (S. by E.) from Rothesay; containing 167 inhabitants. This village derives its name from the fine bay on the southeast of the island, opening into the Firth of Clyde, and eastward of which, and immediately opposite to it, are the isles of Great and Little Cumbray. In the village, from which is a good coast-road to Rothesay, are about fifty inhabited houses; and there is a wharf for lading and unlading small vessels. A rapid increase has taken place here, within the last few years, in the exportation of agricultural produce and of lime, which is very abundant in the neighbourhood. Near the north-east shore of the bay are two barrows, a short distance from each other.