James Fenimore Cooper
The Pathfinder (Soviet stamp for the 200th anniversary of J.F. Cooper, 1989) The Pathfinder, or The Inland Sea is a historical novel by James Fenimore Cooper, first published in 1840. It is the fourth novel Cooper wrote featuring Natty Bumppo, his fictitious frontier hero, and the third chronological episode of the Leatherstocking Tales. The inland sea of the title is Lake Ontario.