Here is an interesting book published in 1921 about the maiden voyage of the clipper ship, "Sheila" in 1877, by the Captain, W. H. Angel, called THE CLIPPER SHIP "SHEILA" . Interspersed throughout this detailed account are sea shanties. They are not usually put into work contexts, but merely given as examples. Do they come from this voyage in 1877, or from later recollections/collections? I can't tell from scanning the text and there are no clues otherwise. I haven't had time to compare them to other collections to see if they might have come from somewhere else. Captain Angel says in his Preface, "The whole of this book has been written up by the Author from carefully kept logs, and its accuracy can be vouched for." Here is a list of the shanties and their page numbers.

"Outward Bound" 51-52
"Unmooring" 52-53
"Goodbye, Fare You Well"   55
"Across the Western Ocean"   59
"Bound for the Rio Grande"   64
"Reuben Rantzau"   73-74
"Sally Brown"   74-75
"Stormalong"   75
"Poor Old Man"   88
"Old Horse"   92-93
"So Early In the Morning"   120-121
"Johnny Boker"   120
"Paddy Doyle" 121
"So Handy, My Girls"   140-141
"Whiskey, Johnny"   144
"Poor Paddy Works On the Railway"   141-142
"Blow the Man Down"   162
"Blow Boys, Blow"   162
"A Roving"   163
"Rolling Home"   186-189
"Haul Away, Jo"   187-188
"Hilo, John Brown, Stand to Your Ground"   269-270
"One More Day, My Johnny"   277
"Farewell, Adieu"   278-279

Here is the link:

http://www.archive.org/stream/clippershipsheil00angeuoft#page/n7/mode/2up

And here is a note about all of this basically laying out the same information by Gibb on the "Rare Caribbean" thread, which I just came across:

Detail.CFM?messages__Message_ID=2608223