Awesome post idea, Cadenza!
I recently read a really great book by Clive Cussler called The Thief. You can read about the plot here:
http://en.wikipedia.org/wiki/The_Thief_(Clive_Cussler), but the dealbreaker is the ship action. Much of the book takes place on the RMS Mauretania, which was a sister ship to the RMS Lusitania, which was the ship sunk in 1915 during World War One. In addition, Captain Turner commanded the RMS Mauretania during the events in this book, and during the sinking of the Lusitania. I'd highly recommend the book, it's a great read and offers some thought-provoking insights into the coal ships. Clive Cussler seems quite accurate most of the time, and this appears to be no different.
I guess I'll talk some more.

One of my favorite scenes in the book show the coal tenders feeding the massive furnace. We see how intense the job is - the searing heat, coal dust, shoveling all day, etc. Anyone who can work in those conditions must be a hulk. The Captain tells Isaac that when the tenders fight, they lock the doors and the ship grinds to a halt until it's over. Wow.