1889  (1964)  A Herald reporter was told . . . that the amount of badgering and lying they were subjected to by land speculators and professional boomers along the line . . . was simply torturing.
1898  At Edmonton he met the effusive and erstwhile boomer, Macdougal, the mayor of the town.
2n. a person who moves from one job to another, originally one who took advantage of boomer days.
1893  (1955)  "Boomers" of every description were seen coming down the hills and up the valleys.
1960  About one in ten was a boomer, seldom staying in town longer than was required to stake himself to a move to the town beyond. . . .
1966  It was the next year, 1866, that . . . Allan arrived in Barkerville with another boomer called Warren Lambert.