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• 140 Great Lakes Maritime History
• 140 Wisconsin Collection

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• 140 Still image

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• 59 American Steel Barge Company (Duluth, Minn.)
• 59 Whalebacks
• 56 Shipyards
• 55 Bulk carrier cargo ships
• 54 Harbors
• 42 McDougall, Alexander, 1845-1923
• 42 Shipbuilding
• 41 Duluth
• 41 Minnesota
• 40 Design and construction
• 15 Grain elevators
• 12 Bridges
• 12 Coal-handling
• 11 Barges
• 11 Breakwaters
• 11 Projects
• 11 United States. Army. Corps of Engineers
• 10 Tugboats
• 9 Steamboats
• 8 Ice on rivers, lakes, etc
• 8 Superior Shipbuilding Company
• 5 Lake Superior
• 5 Lake steamers
• 5 Pittsburgh Steamship Company
• 4 Dredges
• 4 Great Lakes Towing Company
• 4 Interlake Steamship Company
• 4 Lighthouses
• 4 Passenger ships
• 4 Wooden boats

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• 67 McKenzie, Hugh, 1879-1957
• 49 Barry, D. F. (David Francis), 1854-1934
• 2 Baldwin, Will D.
• 1 Bardon, John A.
• 1 U.S. Army Corps of Engineers - Duluth

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• 139 Superior
• 138 Superior (Wis.)
• 41 Duluth (Minn.)
• 9 Howards Bay (Wis.)
• 2 Lamborn Avenue (Superior, Wis.)
• 1 Apostle Islands (Wis.)
• 1 Itasca (Wis.)
• 1 Minnesota Point (Minn.)