1811. Lex. Bal., s.v.
1825. Mod. Flash Dict., s.v.
1859. Matsell, Vocabulum, s.v.
3. (colonial).—One who illegally appropriates a claim: but see Jump,
verb. sense 1. Cf. Bounty-jumper.
1890. Gunter, Miss Nobody, p. 86. Bob, the hero who saved the Baby
mine from the jumpers got us.