Definition of yeomen:
(n) :
(US) A dependable, diligent, or loyal worker or someone who does a great service.
(n) :
(UK) An official providing honorable service in a royal or high noble household, ranking between a squire and a page. Especially, a yeoman of the guard, a member of a ceremonial bodyguard to the UK monarch (not to be confused with a Yeoman Warder).
(n) :
(historical) A former class of small freeholders who farm their own land; a commoner of good standing.
(n) :
A subordinate, deputy, aide, or assistant.
(n) :
A clerk in the US Navy, and US Coast Guard.
(n) :
(nautical) In a vessel of war, the person in charge of the storeroom.