Yes, YEOMANRIES is a Scrabble word!

Letter values in Scrabble US: Y 4, E 1, O 1, M 3, A 1, N 1, R 1, I 1, E 1, S 1.

Is it a valid word?

YEOMANRIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

class of small freeholders who cultivated their own land
a British volunteer cavalry force organized in 1761 for home defense later incorporated into the Territorial Army