The base of the yard fence in front of the house and most of the walls of the house and washhouse were built with stones from the Ogallalah Formation. The stones were quarried from the slope behind the outbuildings and the Pratt's timber claim a half mile away. The pale yellow and pink stones used for cornerstones and lintels came from the Smoky Hill Chalk member of the Niobrara Formation about one mile from the site.