- Fairbanks Morse diesel engine history 1
- Pioneers In Industry. The Fairbanks Morse & Company history.
- 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.
- TUG JOHNS PURVES.
- WOODWARD COMPRESSOR CONTROL...
- Woodward steam turbine control history.