Bromley Urban District

From the Wikipedia page on the Municipal Borough of Bromley

Bromley Local Government District was formed in 1867 when the parish of Bromley adopted the Local Government Act 1858, and a local board of twelve members was formed to govern the town. The Local Government Act 1894 reconstituted the area as Bromley Urban District. An urban district council of 16 members replaced the local board.

The town was granted a charter of incorporation to become a municipal borough in 1903. The granting of the charter was celebrated by a public holiday in the town on 2 September 1903. The charter was brought by train to Bromley South Station where it was handed to the charter mayor, Thomas Charles Dewey. The mayor then rode in procession led by units of the Royal Horse Artillery and the Royal West Kent Regiment, accompanied by mayors and mace bearers of boroughs in Kent and the County of London and watched by an estimated crowd of 20,000. A sports day and carnival was held at Queen's Mead.

Under the charter a town council consisting of a mayor, six aldermen and eighteen councillors replaced the UDC