candidates supported by both major parties
As early as the first Federal elections in 1788, there were candidates, who while alligned with one party or another, was supported in the press by both parties in a particular election.
Assistant Alderman: Since the guilds became identified with the corporation or ruling municipal body: Assistant to the alderman position. See Alderman.
Oxford English Dictionary
1824: A city position in Albany, Hudson and New York NY.
Office Scope: City
Role Scope: Ward