There shall be kept in the office of the city clerk and also in the office of the cemetery sexton an accurate and permanent record of the ownership of lots in the cemetery and the status of such lots, showing all transfers of lots, the names and addresses of the owners, the lots in which interments have been made and the names of the persons interred, and such other information as may be deemed advisable. The city clerk and the cemetery sexton shall each keep in their records a plat or plats, accurate and up to date, of all city cemeteries. This duplication of cemetery records is necessary to insure at all times the preservation of accurate cemetery information.