The said board of commissioners shall annually elect 1 of its members as president. It shall elect a secretary and treasurer, and may appoint such other officers or employes as it may deem necessary. The secretary shall keep a correct record of all the transactions of the board of commissioners, which shall be a public record, and may be inspected at all times by any taxpayer residing in any township owning an interest in any such park or resort as a grantee. The treasurer shall give a bond in the penal sum of 6,000 dollars.