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McKee Sons (originally named Marine Angel) is a barge and former type C4-class troopship. In March 1953, it became the largest vessel to traverse the Chicago River, when it was en route to the Great Lakes to work as a lake freighter. In 2014, the ship was laid up in Muskegon, Michigan, where it remains.

Troopship
The type C4-class Marine Angel  was built in 1945 by the Sun Shipbuilding & Drydock Co. in Chester, Pennsylvania. Originally laid down as a freight ship, it was completed as a troopship for Moore-McCormack before travelling to New York in April 1945. For the next six months it undertook six return transatlantic crossings between the US east coast and France and England. In October 1945, it travelled to Colombo and Kolkata via the Suez Canal, before continuing east to Seattle, Washington. In January 1946, Marine Angel returned to Asia, voyaging to Singapore and Kolkata, returning to Seattle on 14 March 1946 where it was released from service. It was subsequently laid up on the James River in Virginia as part of the National Defense Reserve Fleet.

Freighter
In 1952 the ship was acquired by the American Steamship Company. In Baltimore, Maryland, it was refitted with a new bow section, extending its length to 634 ft, as part of its conversion to function as a self-discharging lake freighter on the Great Lakes by the Wisconsin and Michigan Steamship Company. En route to Lake Michigan, the vessel travelled from the Gulf of Mexico via the Mississippi River and the Illinois Waterway. It was the largest boat to navigate the waterway in one piece, and at Van Buren Street it was reported to have just 7 in clearance either side. Chicago Harbor Lock allows a maximum length of 600 ft; both sets of lock gates were opened to allow the ship to be towed through against the flow of water.

Fate
Renamed McKee Sons, the ship operated as a steamship until 1979, after which it spent 10 years out of service in Toledo, Ohio. In 1990 it was acquired by the Upper Lakes Towing Company in Escanaba, Michigan; it was converted into a barge by shortening it to approximately 580 ft and removing its propulsion system.

In 1997 and 1998 the barge twice ran aground in the Saginaw River. After the end of its charter with the Upper Lakes Towing Company, McKee Sons was bareboat chartered to the Grand River Navigation Company. It was refurbished in Sarnia, Ontario, before working alongside the tug Invincible. In 2012, McKee Sons was taken to Erie, Pennsylvania for its five-year inspection; necessary steel work was not carried out and the Grand River Navigation Company charter lapsed. Two years later the barge travelled to Muskegon where it was laid up.