"Yeoman" is an antiquated term for farmers, tradesmen and other members of the early English middle class. The term suggests someone upright, sturdy, honest and trustworthy.
Yeoman is also a naval occupation, roughly equivalent to a secretary.
... 18 to 24, 33.8% from 25 to 44, 21.3% from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. ...