Try the Prairie Museum, Colby, Kansas. It houses all the information that is available for Thomas County, including cemetery information and a large number of old newspapers. I have a copy of "The Golden Jubilee Anniversary of Thomas County and its Neighbors" 1885-1935. It contains stories from some of the pioneer descendants. Unfortunately it does not have a complete name index. If you give me some names I will skim-check for any information in it. My Lee family went to Thomas County in the late 1920's but I have not lived there since 1945 and have no living family there now.
Good luck, Betty Carter - Ft. Worth, TX