Noun

(jackmen)

(motor racing) A member of the pit crew responsible for lifting the car with a jack.

*{{quote-news, year=2007, date=June 9, author=The Associated Press, title=Sports Briefing, work=New York Times citation

, passage=While Stewart’s team checked out the damage to his car in the pit stall, Busch pulled next to Stewart’s car, forcing the jackman Jason Lee to jump back and onto the hood. }}

(obsolete) One wearing a jack; a horse soldier; a retainer.

* Sir Walter Scott

Christie the laird's chief jackman .

(obsolete) A cream cheese.

(Webster 1913)

Noun

(hackmen)

The driver of a hack

*{{quote-book, year=1869, author=Mark Twain (Samuel Clemens), title=The Innocents Abroad, Part 3 of 6, chapter=, edition= citation

, passage=But he makes all his calculations with the nicest precision, and goes darting in and out among a Broadway confusion of busy craft with the easy confidence of the educated hackman . }}

*{{quote-book, year=1870, author=Various, title=Punchinello, Vol. 1, No. 22, August 27, 1870, chapter=, edition= citation

, passage=He did not engage the services of any hackman or professional guide. }}

*{{quote-book, year=1898, author=Henry Francis Keenan, title=The Iron Game, chapter=, edition= citation

, passage=The hackman had taken him to the house where Jones was lying. }}