Henry's Valley was once an industrious community where people lived, farmed, worshipped, and worked. In the 1790s, John Henry bought some valley land from early settler Daniel Diehl. As Henry's family grew, the area became known as Henry's Valley and, by 1812, he had built grist and saw mills. In 1843, Isaiah G. McFarland bought the property and erected the Toboyne Tannery. The large tannery complex included vats, bark sheds, workers' housing, and surrounding timber land, and bark from local trees was used to tan animal hides into leather. The tannery drew workers into the valley and flourished until the late 1860s. The community included farms, a store, a school, and several mills. About 1864, Newville entrepreneurs Peter and Daniel Ahl built the steam powered Phoenix Saw Mill at the western end of the valley. However, both the tannery and mill had become defunct by the 1880s, and families began leaving to find employment and closer amenities. In 1906, the Commonwealth of Pennsylvania bought most of the land in the valley. Frank P. Sundy and his family were the last residents there; he served as forest ranger in the valley from 1907 to 1921, when he moved to New Germantown, and he continued as forest ranger there until his death in 1924. With protection from forest fire, the trees have grown to magnificent size, and evidence of past occupation remains in the cemetery, an old stone wall, a bit of barbed wire in a tree, and a dry mill race.