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      Dimensions (LBD): 125' x 23' ; First steamer on upper reach of Ottawa River. Date unknown Ran Grenville, ONT-Hull, ONT. 1829-1831 Laid up 1831, Aug 10 First passage on Rideau Canal.

      Final Date: 26 Jan 1843; Dimensions (LBD): 93.6' x 18.6' x 6.6' ; 1831, Nov 6 Launched. 1834 Owned H. Dickinson. 1836 Owned Pacaud & Mullins. 1836, May 29 Ran down Lachine Rapids. 1837 Rebuilt. 1841 Owned Murray & Sanderson, Montreal, QUE. 1843, Jan 26 Registry closed.

      Other Names: UNICORN; Final Date: 1848; Dimensions (LBD): 105' x 25' x 6' ; 1830, May 3 Launched; ran Kingston - Belleville, Ottawa River. c1835 New engine by Ward Brothers, Montreal, QUE. 1837 Rebuilt, 135 x 25 x 6; "sharpened at bow". 1847 Renamed UNICORN. 1848 Owned Platt et al, …

      approx. 100x25. Owned by Ottawa & Rideau Forwarding Co. Built by G. Thurston, Hawkesbury Ont. 1834. Engine by J. D. Ward & Co., Montreal (from "William King"). Used Kingston-Bytown-Grenville. Wrecked in gale 19/10/37 Kingston. At first reported total destruction, actually vessel patched up and back in service three weeks later.

      94x19x7 Owned by H. Dickinson 1834; to Pacaud & Mullins 1836; Murray & Sanderson, Montreal 1841. Built by T. Mears, Hawkesbury Ont. and launched 11/06/31. Engine by Ward Bros., Montreal, from "St. Lawrence". Built for Lachine-Cascades; run down Lachine Rapids 29/05/36 and used below Montreal. Rebuilt 1837, details unknown: "Improved …

      Other Names: Unicorn (1847); First Rebuild: Propulsion: Sidewheel Rebuilt: in 1837 Approx. 105x25x6 Owned by Ottawa & Rideau Forwarding Co.; to Macpherson & Crane, Montreal 1844, 1846; Messrs. Platt 1848. Built by Fleming, Hawkesbury Ont. and launched 03/05/30. First engine by Maudslay & Sons, London England, from "Quebec"; after 1835 …

      Approx. 125x23. Owned by P. Wright et al., Hull Que. Built by W. Grant, Hawkesbury 1822. Engine by Boulton & Watt, London England, from "Swiftsure". Stability deficient, "artificial bilges" added. Used Grenville-Hull, later on Rideau Canal. First steamboat on upper reach, Ottawa River; also first on Rideau. Laid up 1829-31. …

      Approx. 108x19x8 (width over paddle boxes 32') Owned by Ottawa & Rideau Forwarding Co. Built by Shea & Merritt (of Montreal), probably at Hawkesbury. Engine by Bennett & Henderson, Montreal. Had 26 berths. Note: Length often given as 180'. This arises from a misprint in the account of the launch …

      Approx. 70x20x6 Owned by A. Allison et al. Built by Bruce, Hawkesbury Ont. 1819. Engine by J. Lough, "Montreal Air Furnace". Very unsuccessful, ran only one season (1820). To be sold 31/07/22 "as she now lies at Lachine sunk in four feet of water" (Montreal "Gazette"). Wreck placed at entrance …

      Official No.: 116865; 61x18x4 Owned by River Sand Co., Montreal. Sternwheel.