Check out this link. It has alot of pictures. I also have a book about the history of the "Canal" that has some great constuction photos. The Cape Cod Canal by Robert H. Farson
http://www.nae.usace.army.mil/recrea...hoto_index.htm
I think alot of them can be found in a museum in Sandwich. I have been in the area all my life and have had a boat in Wareham for 35 years and the first time I heard it refered to as the Ditch was a couple of years ago on one of the fishing sites. Never by locals. This is one of my favorite pictures.