Yes, the Word statesmen is a common plural noun, a Word for any statesmen anywhere.
A proper noun is the name of a specific person, place, thing, or a title; for example:
- The Statesmen, a well known singing group of the 1950s
- Statesmen Drive, Indianapolis, IN
- The Statesmen (athletic teams) of William Penn University, Oskaloosa, IA
- The Delta State Statesmen (athletic teams) of Delta State University, Cleveland, MS
- "Patriots and Statesmen", a novel by Gene Wright
