1937(Rhenania Junior RJ-202)
- Type: Great Lakes tanker
- Displacement: 4,161 tons
- Dimensions: 465 x 55 x 28 ft.
- Machinery: Oil fired, steam triple expansion, 2600 ihp = knots
- Builder: Manitowoc Shipbuilding Co., Manitowoc, WI, 1937
- Service: Built for Standard Oil Co. (Indiana), Whiting IN. "Red Crown" was their brand of gasoline from the 1920s. Company renamed American Oil Co. and vessel renamed Amoco Indiana in 1962. Sold to Medusa Cement Co., Cleveland OH in 1986; converted to self-unloading cement barge at Sturgeon Bay WI by Bay Shipbuilding and renamed Medusa Conquest in 1987. Sold to Southdown Inc. 1998 and renamed Southdown Conquest. Resold to Cemex 1998 and renamed Cemex Conquest. Sold to St. Marys Cement Co. 2004 and renamed St. Marys Conquest.