Frederick Sager owned a large farm, comprising the land in Survey 3,686, on the east banks of Darby Creek, now the property of T. T. Kilbury and Perry Douglass. His first cabin stood near the present residence of Mr. Kilbury. Mr. Sager had the honor of erecting the first mill in the territory now comprising Union County. He was a generous man, but, like many of the pioneers, rough in manners. He married Hannah Harrison, raised a large family and ultimately removed with it to Kalamazoo County, Mich., where he spent the remainder of his life.