riverman DCHP-1 (pre-1967)
1 n.
a man who spends much of his life working on a river as a boatman, canoeman, etc. and is therefore knowledgeable about its ways.
2 n. — Lumbering
a man who takes part in the process of floating or driving logs.
See also: driver (def. 1)
3 n. — Lab.
a man who lives along a river, trapping, fishing, etc.