The Clerk shall be the custodian of this code and of all documents belonging to the village which are not assigned to the custody of some other officer or employee. In addition to the record of ordinances and other records which the Clerk is required by statute to keep, the Clerk shall keep a register of all licenses and permits issued and the payments thereon; and such other records as may be required from time to time by the Board of Trustees. The Clerk shall keep and maintain a proper index to all documents and records kept by him or her, so that ready access thereto and use thereof may be had.