What is the county seat for the county that Barclay, the unincorporated community, is in?
Barclay, Kansas: Barclay is an unincorporated community in Osage County, Kansas, in the United States. Osage County, Kansas:  As of the 2010 census, the county population was 16,295. Osage County, Kansas:  Its county seat is Lyndon, and its most populous city is Osage City.
Lyndon