Aaron Ayers arrived in Christchurch, New Zealand from England as a newly married man in his mid 20s. He was a hairdresser and tobacconist for two decades before entering the auctioneering business. He was elected Mayor of Christchurch in 1885 unopposed, and was re-elected a year later in the most keenly contested mayoral election thus far, narrowly beating Charles Louisson. He retired after his second term as mayor. In 1887 he contested a 1887 by-election for Heathcote and the 1887 election for Christchurch South, but came second on both occasions. After his mayoralty, he lived mostly a private life and was known as an avid gardener.

The Mayor of Christchurch is the head of the municipal government of Christchurch, New Zealand, and presides over the Christchurch City Council. The mayor is directly elected using a First Past the Post electoral system. The current mayor, Phil Mauger, was elected in the 2022 mayoral election. The current deputy mayor is Pauline Cotter.