Wyoming Valley, a fertile valley in Pennsylvania, on the Susquehanna River, 20 m. long by 5 broad; it was the scene of a series of contests between rival settlers, when the last of them were set upon by an invading force, forced to surrender, and either massacred or driven forth from the valley; Campbell's “Gertrude of Wyoming” relates to this last disaster.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Wyoming * Wyss, Johann Rudolf