gen|tle|per|son «JEHN tuhl PUR suhn», noun.
U.S. a polite term for a man or woman; gentleman or gentlewoman: »
The ideological egalitarianism of these gentlepersons is uninhibited by thought…or by word refinement (National Review).
Usage Gentleperson eliminates reference to sex, and the form Gentlepersons is therefore a neutral salutation in letters.
Useful english dictionary. 2012.