1915 private laws – Ch.184 Sec.8

The mayor shall hold office for the term of two years, but shall continue in office until his successor is elected and qualified. The councilmen elected from the First, Fourth, and Sixth wards at the election of one thousand nine hundred and fifteen shall hold office for two years and until their successors are elected and qualified, and the councilmen elected from the Second, Third, and Fifth wards at said election shall hold office for the term of four years and until their successors are elected and qualified, and biennially thereafter, on the first Tuesday in May, there shall be elected by the qualified electors of said city a mayor and the successors of the members of the council of said city whose term of office shall expire in said month and year. AlJl councilmen elected after one thousand nine hundred and fifteen shall hold office for a term of four years from and after their election. :