Here's a great website, local history, 19th and 20th centuries in pictorial form (with a few notes).
I particularly like the section on the dockers, but also the one on barges and bargemen.
My old grandad was docker and a strong union man after being invalided out of the army. My old man used to unload those barges on the River Hull. We had a fine collection of docker's hooks at home when I was a kid.
Me, I did a bit of deal carrying in a timber yard - lasted a fortnight.

I should give credit to William Braquemard's blog, "Hull and Hereabouts" (listed among the links on this page), which led me to the site.