found: Britannica online, Oct. 26, 2015:Wales (constituent unit of the United Kingdom that forms a westward extension of the island of Great Britain; in text: Welsh used as adjective for the people)
found: Merriam Webster online, Oct. 26, 2015:Welsh (or Welch; noun; def. 1: plural in construction : the natives or inhabitants of Wales descended from romanized Britons plural -es) welshman (or welchman; capitalized : a native or inhabitant of Wales : one of the Welsh) Welshwoman (a woman who is a native or inhabitant of Wales)
found: Labels for locals, 2006:Wales (Welshman or Welshwoman; adjective: Welsh)
found: OED online, Oct. 26, 2015:Welsh (as noun: def. 2a: With pl. concord. Usu. with the. Welsh people, soldiers, etc., considered collectively; 1b. A person from Wales; a Welshman. Obs.)