- Fairbanks Morse diesel engine 17
- Fairbanks Morse diesel engine 18
- TUG JOHNS PURVES.
- Postcard data and image courtesy of the Door County Maritime Museum.
- ROEN STEAMSHIP COMPANY BOOK.
- ROEN STEAMSHIP COMPANY BOOK.
- ROEN STEAMSHIP COMPANY BOOK.
- ROEN STEAMSHIP COMPANY BOOK.
- ROEN STEAMSHIP COMPANY BOOK.
- WOODWARD COMPRESSOR CONTROL...
- Woodward steam turbine control history.