1765-67  (1933)  [The men Cut Down Small Saplens and Made the frames of two Boates—Sowed the Skins toGather and Made Bottoms to thare frames—Rub'd them Over with tallow which Made them tite anuf to Bring the furs Down to me whare I had Canoes to Receve them.]
1858  (1860)  These great prairie-rivers are generally crossed . . . in "bull-boats," or "parchment canoes" by the Indians. . . .
1918  (1919)  They had seen . . . few boats other than the round "bull boats" which they hastily constructed when they wanted to cross a river. . . .
1960  It lists well known terms . . . but misses such words as jerky, bull boat. . . .