Clarkson was a "once-thriving whistle-stop of the Victorian era" located on the Des Moines River floodplain.[6] According to author Nancy Mae Osborn, "The Clarkson post office was discontinued on 30 June 1906 and its former patrons received delivery out of Carlisle [...] Gradually the buildings that had once comprised Clarkson were torn down, leaving only two farm houses. These, along with the Clarkson railroad depot sign, were removed in 1967 after the U.S. Army Corps of Engineers had acquired the property."[6] Today nothing remains of the Clarkson townsite.