Sims Post Office   Sims Post Office was located at the Greathouse Community. Ezekial M. Brack was postmaster from Dec. 9, 1877 to Jan. 5, 1880, when it was discontinued.   Copyright © 2002-2016, Ellis County TXGenWeb. All Rights Reserved. This page was last modified: Monday, 10-Sep-2018 10:23:32 MDT