PORT-WILLIAM, a village, in the parish of MochRUM, county of Wigtown, 85 miles (S. W.) from Wigtown; containing 634 inhabitants. This is a neat and thriving sea-port village, situated on the eastern shore of Luce bay. It was built about 17 62 by Sir William Maxwell, Bart., of Monreith, in honour of whom it is named. In I788 small barracks were erected here for military, and for custom-house officers, in order to the prevention of contraband trade. The harbour is safe and commodious, and large quantities of potatoes and grain are shipped for Liverpool and Lancaster. The bay abounds with fish of excellent quality, and in great variety. In the village is a post-office, which has a daily delivery; and a school, endowed by the lady of the present baronet, is attended by about eighty children.