OK i have started a thread over on the history of ships forum and will add those boats for pictures....
re early 20 cent merchants, a very common feature was a plub ie straight up and down bow, counter sterns and high stacks due to the coal fired boiilers...also distinctive early 20th century vents and blowers and fog horns..high profile compared to later in the century....
I do love those early ships, they had a beauty all their own. Sad to say over 5000 of them were sent to the bottom of Davy Jone's locker by the U boats but that was war.
Here is one of the very best sources for images and information for merchant ships of that era:
US Department of the Navy World War I Era Cargo Ships Organized by Type:
http://www.ibiblio.org/hyperwar/Onli...tp/ak/w1ak.htm
i think that one site will give you may pictures of ships that you may need...
and for British Merchant shipping, the best site is:
the Red Duster:
http://www.red-duster.co.uk/
that book looks wonderful congrats...