When his tribe, probably from the Algonquin Nation of the Lenni Lenape, had left the land to go West, Keghgekapowell was said to have gone with them never to return.

[1] One of the early settlers, Richard Wood, built Woodlawn Farm, and was one of the original members of the Primitive Baptist Church of Brookfield.

Both his house and church, the oldest buildings in Slate Hill, still stand and are listed on the National Register of Historic Places.

When the postal system was establishing itself after the American Revolution, the government had discovered that there already existed a Brookfield in Madison County, N.Y. and thus opted for the name Slate Hill.

There have been several small strip malls which have appeared in the post 9/11 period, namely Slate Hill Commons.