Attendance officers or home and school visitors may be employed for the full calendar year, and shall be paid such amounts and in such manner as the board of school directors appointing them may decide. They shall at all times perform the duties of their appointment under the direction of the board of school directors appointing them.

In districts of the first class the minimum salaries of attendance officers and home and school visitors in elementary schools shall be: Minimum annual salary, one thousand two hundred dollars ($1200); minimum annual increment, one hundred dollars ($100); minimum number of increments, ten (10). No school district of the first class shall reduce the compensation of any attendance officer below that paid on the second day of July, one thousand nine hundred thirty-seven.