Cyrus Dennis was the first Mayor when Auburn was incorporated as a city in 1848.
Theodore M Pomeroy was the Clerk. The City Alderman were: Shubael Cottle, Joseph Morris, Joshua Burt, Charles F. Coffin, Edward Barber, John B Gaylord, Stephen S Austin, and Wheaton Sanders.

From Hall's History of Auburn:
    "Mr. Dennis exhibited a high order of intelligence, and sustained an unsullied reputation for integrity and virtue. He was proverbially known as an upright, straightforward, out-spoken, clear-headed, enterprising, generous, and patriotic citizen, and there never was a business man in the whole community whose loss was more deeply felt than his."

Cyrus Dennis was also on the first board of Trustees for Fort Hill Cemetery.