It took a good raftsman to get a raft over the Falls.
"Old Rail Fence Corners" by Various
As far as I can learn, he was formerly a raftsman.
"The History and Records of the Elephant Club" by Knight Russ Ockside and Q. K. Philander Doesticks
However, Antonio proved a most expert raftsman, being almost amphibious and smart as any eel.
"The Log of a Sea-Waif" by Frank T. Bullen
I thought a raftsman ought to know that the proper time to raft is when the flood is falling, not rising.
"Ande Trembath" by Matthew Stanley Kemp