This canal-style tugboat was built in 1962 by Main Iron Works as the Donald C. Hannah for Hannah Marine of Lemont, Illinois. In 2009 she was sold to Kindra Lake Towing of Chicago, IL and renamed Donald C.
Calumet River Fleeting of Chicago, IL purchased the tug in 2017, where she was renamed Nathan S.
- Type: Twin Screw Tugboat
- Year Built: 1962
- Builder: Main Iron Works, Houma, LA
- Hull No.: 113
- Engines: 2 EMD 12-567C
- Horsepower: 2,400 bhp
- Length: 91′ 00″
- Breadth: 29′ 00″
- Depth: 11′ 06″
- Port of Registry: Chicago, IL