175.251  Employment records required to be kept by secretary of board of trustees.--The secretary of the board of trustees shall keep a record of all persons receiving retirement payments under the provisions of this chapter, in which shall be noted the time when the pension is allowed and when the pension shall cease to be paid. In this record, the secretary shall keep a list of all firefighters employed by the municipality or special fire control district. The record shall be kept in such manner as to show the name, address, and time of employment of such firefighters and when they cease to be employed by the municipality or special fire control district.