1931  "Dinner," say the trail breakers; well, they ought to know, they are bearing the brunt of the work.
1963  Boys of about thirteen are usually the trail breakers of the group [Naskapi Indians], which constantly moves in the eternal search for food. . . .
1959  It is on the subject of pioneers--trailbreakers, bushwhackers, sodbusters, homesteaders--that the slick "free enterprise" propagandist . . . waxes most eloquent. . . .