At a like convention, held by request of either branch of the city councils, they shall fill all vacancies that shall exist in the boards of assessors, overseers of the public welfare or school board, until an election shall be had, and all vacancies in any office to which they have power to elect.
Source. 1846, 384:23. GS 44:4. GL 48:4. PS 50:4. PL 54:4. RL 66:5. RSA 47:4. 1957, 198:3.