1840:   On 17 April 1840, the wooden side-wheeler CATARAQUI was burned to a total loss during a great fire, which destroyed much of the waterfront area of Kingston, Ontario.

1870:   The first vessels through the Straits of Mackinac for the 1870 season were the CITY OF BOSTON and the CITY OF NEW YORK, both owned by the Northern Transportation Company. They passed through the Straits on 17 April 1870. The following day they passed Port Huron but could only go as far as Algonac, Michigan, since the St. Clair River had an ice jam which raised the water level by two feet and was causing flooding.

1871: 
 17 April 1871 – The wooden brig ST. JOSEPH was carrying lumber from Ludington, Michigan, to Chicago, Illinois. Her hold was filled and lumber was stacked on deck so she was indeed overloaded. A gale developed and the deck load shifted, then was lost. ST. JOSEPH became waterlogged in mid-lake. Her crew remained with her until 19 April when the propeller ST. LEWIS found them 35 miles southwest of Pentwater, Michigan, and took them there. The tug ALDRICH towed the waterlogged brig in for repairs.

1874:   On 17 April 1874, CHARLES J. KERSHAW (wooden propeller, 223 foot, 1,324 gross tons) was launched at the Ballentine shipyard at Bangor, Michigan.

1929:   Canada Steamship Lines a.) STADACONA (Hull#24) was launched April 17, 1929, by Midland Shipbuilding Co. Ltd. She was renamed b.) NORDALE in 1969 and was scrapped at Port Colborne, Ontario, in 1983. She was the first vessel scrapped at the old Algoma Steel Dock in Port Colborne.

1961:    FREEMAN HATCH was built at Sturgeon Bay and completed in December 1942. It left the Great Lakes the following spring for service for the British Ministry of War Transport. It was sold and renamed b) CHARLES M. in 1950 and became c) HOUSTON in 1953. The vessel was sunk on this date in 1962 during the attempted, anti-Castro, Bay of Pigs invasion of Cuba.

1970:   April 17, 1970 – CITY OF FLINT 32 was sold to the Norfolk & Western Railway for $100,000.

1982:    CHEMICAL TRANSPORT ran aground in the St. Lawrence near Dark Island as channel markers were out of position due to the wind and ice conditions. The vessel lightered some cargo to fleetmate JAMES TRANSPORT and then went to Sorel for repairs. In 2009, the ship was reported as lying burned out and derelict near Lagos, Nigeria, after an explosion and fire as c) REAL PROGRESS on June 1, 2001.

1983:   The Collingwood-built, 610-foot aft section of the JOHN B. AIRD passed up bound through the St. Marys Falls Canal on April 17, 1983, in tow of the tugs WILFRED M. COHEN and JOHN MC LEAN heading for Thunder Bay, Ontario, where it was assembled with the 120-foot bow section.

1990:    RESERVE ran aground in the St. Marys River while downbound with a load of iron ore for Toledo on this date in 1990. The ship stranded in a snowstorm and had to be lightered to the WILLIAM R. ROESCH before going to Fraser Shipyard for repairs.

1997:    ALGOLAKE got stuck on Vidal Shoal, St. Marys River while bound for Algoma Steel with a cargo of iron ore. The ship was lightered and released. After unloading, the vessel went to Thunder Bay for repairs.

Data from: Skip Gillham, Jody Aho, Max Hanley, Joe Barr, Dave Swayze, Ahoy & Farewell II, Father Dowling Collection and the Great Lakes Ships We Remember series.