1872
.1872: On 6 April 1872, the schooner I.N. FOSTER was launched from the Fitzgerald & Leighton yard at Port Huron, Michigan. She was classified as a “full-sized canaller” since she was as large as a vessel could be to pass through the Welland Canal. Her dimensions were 143 foot overall, 26 foot inch beam, 11 foot 6 inch depth, 437 tons.
1912
1912: The a.) LOUIS R. DAVIDSON (Hull#95) of the Great Lakes Engineering Works was launched April 6, 1912, for the American Steamship Co. Later renamed b.) DIAMOND ALKALI in 1932, c.) DOW CHEMICAL in 1939 and d.) FERNDALE in 1963. She was scrapped at Castellon, Spain in 1979.
1931
1931: April 6, 1931 – The CITY OF FLINT 32 set a world record sailing 101,000 miles in her first year of service.
1942
1942: The CANADIAN FARMER was Hull 65 of the Collingwood shipyard and it was launched there on December 27, 1919. The vessel was sailing as c) SHIN KUANG when it was sunk by Japanese surface naval forces on the Bay of Bengal.
1949
1949: FORT WILLDOC of the Paterson fleet and the JAMES E. McALPINE of the Brown Steamship Co. collided in Lake Superior, above Whitefish Point, on this date. Both ships were damaged and needed repairs.
1972
1972: The freighter STAR OF REWIAH had been built at Collingwood as Hull 105 and launched as the corvette H.M.S. COMFREY on July 28, 1942. The ship was later converted to a cargo carrier and was sailing under this sixth name when it ran aground off the Ashrafi Lighthouse in the Gulf of Suez and declared a total loss on this date in 1972. It was traveling in ballast from Suez, Egypt, to Safaga, Egypt, at the time.
1978
1978: The self-unloader TARANTAU was blown aground due to the wind and shifting ice pack in Lake Huron above Port Huron and had to be freed by the tug BARBARA ANN.
1979
1979: A violent spring storm found LABRADOC (ii) on Lake Erie where the cargo shifted and the vessel took on a precarious list. All on board were removed fearing the ship would roll over and sink. But it survived and was towed to safety eventually undergoing repairs at Port Weller Dry Docks. The vessel left Great Lakes service in 1988 and operated on deep sea runs as b) FALCON CREST until scrapping at Gadani Beach, Pakistan, in 1994.
1992
1992: An explosion and fire in the tunnel of HALIFAX occurred while the CSL ship was upbound in the St. Marys River. One sailor was killed and two more injured while the ship sustained internal damage. It went to Thunder Bay for repairs.
2021
2021: On April 6, 2021, the Algoma Central Corporation took delivery of the CAPTAIN HENRY JACKMAN, the fifth Equinox Class gearless dry-bulk carrier and the tenth Equinox Class vessel to join the fleet.
Data from: Skip Gillham, Max Hanley, Joe Barr, Dave Swayze, “Ahoy & Farewell II,” the Father Dowling Collection, the Historical Collections of the Great Lakes, Bowling Green State University, and the “Great Lakes Ships We Remember” series. This is a small sample, the books includes many other vessels with a much more detailed history.