The Chamberlain American Legion Post was orginally chartered on 7 July 1919 and designated as Potter Post #3.  The first Commander was C.A. Whitbeck, Adjutant was J.W. Lewis, Treasurer A.J. Gilbert, Serivece Officer was G.C. Uhler, Chaplain was Rev. Robert Frazier, Historian was C.A. Knight and Secretary was R.W. Gano.  The total number of enrolled members the firt year was 125 with dues being $3.00.  The post was named after Carl and Oscar Potter, two brothers from Chamberlain who died in WWI.  Carl Potter, the younger of the two brothers entered the service in June 1918 and following training became a member of the Infantry.  He died in France on 4 October 1918 from pneumonia.  Oscar Pottered entered the service in May 1918.  Following training he left for overseas, a member of a machine gun battalion.  He was mortally wounded in action during the last drive of the Argonne on 9 November 1918 and died the following day, one day before the Armistice was signed.