Here are a couple of references I missed, but I think you've covered two of them.

{1850s} W Craig , ADVENTURES IN THE AUSTRALIAN GOLD FIELDS, 1903 "Two shanty fragments as sung on the sailing ships bringing gold seekers to Sydney. (From Warren Fahey's website).

"Oh fare you well, my own Mary Anne" [pumping]
" When first we went a-waggoning" [anchor hauling]

http://warrenfahey.com/maritime-3.htm

{1850s} OCEAN LIFE IN THE OLD SAILING SHIP DAYS, John D. Whidden. Whidden's source is his "old friend, Captain George Meacom, of Beverly [Mass.]." Meacom refers to his own recollection of the 1850s, and his testimony seems to be reliable. (See Gibb's note above)

"Mobile Bay" /"Johnnie Come Tell Us As We Haul Away"
"Fire Down Below"
"One More Day For Johnnie"

http://books.google.com/books?id=cj0NAQAAIAAJ&pg=PA99&dq=%22One+more+day+for+Johnnie%22&cd=1#v=onepage&q=%22One%20more%20day%20f

{1853} A JOURNEY IN THE SEABOARD SLAVE STATES Frederick Law Olmsted, 1861

"Oahoiohieu" / "The Sailor Fireman" ("Lindy Lowe") [riverboat]
"Oh, John, come down in de holler" [riverboat]

(scroll down):

http://books.google.com/books?id=koMIAAAAQAAJ&pg=PA607&dq=You+see+dem+boat+way+dah+head&lr=&cd=33#v=onepage&q&f=false