Marsh Valley Joint School District School Board Zone 1 Trustee Kathy Egan. | Courtesy photo POCATELLO — Voters in the Marsh Valley school district will soon vote to decide whether one of the school board trustees will stay on the board. A recall election for Kathy Egan, the trustee representing Zone 1 of the Marsh Valley Joint School District, is on the ballot for Tuesday’s upcoming election, and a simple majority of Marsh Valley voters will det…