James Lang (Shipbuilder)
of Dumbarton
1823 Built Superb; 94 feet by 15 feet 6 inches, 111 tons, 50 horse-power; plied between Glasgow and Rothesay.
1824 Built George Canning; 100 feet by 16 feet, 81 tons, 35 horse-power; plied between Glasgow and Belfast, afterwards between Glasgow and Rothesay; on that route up till 1832.
1825 Built James Ewing; 101 feet by 16 feet 1 inch, 80 tons, 36 horse-power; a sister ship to the George Canning plied between Glasgow and Lochgilphead, and occasionally to Inveraray; was on the Rothesay route up till 1834.
1831 Built Rothesay; 96 feet by 16 feet, 70 tons; plied between Glasgow and Rothesay.