Trenton, in Madison Twp., was the fourth settlement in Butler County. It was founded in 1800 as Bloomfield by Michael Pearce and Stephen Gard. It was platted Feb. 27, 1816, as Bloomfield by Pearce and Gard. It was settled by New Jersey people, which accounts for its two names. The name was changed to Trenton (after the capital of New Jersey) when the first post office opened March 6, 1821, because there was another Bloomfield in Ohio (Trumbull County). It too was named for Joseph Bloomfield (1753-1823), a veteran of the American Revolution, governor of New Jersey (1801-1812) and later an officer in the War of 1812 and a U. S. congressman (1817-1821). Great Miami River crossings to the immediate east were known as Ball's Ferry and Brownstown. Trenton became a station on the Cincinnati, Hamilton & Dayton Railroad when the line opened in 1851. It also was connected with Cincinnati, Hamilton, Middletown and Dayton by an interurban system (Cincinnati & Miami Valley Traction Company) between 1897 and 1939. The interurban line maintained a ticket office and car barn in Trenton. Nine people were killed Thursday morning, June 30, 1932, in the worst interurban accident in Butler County when two trains on the Cincinnati & Lake Erie line collided at the Elk Creek curve about 1.5 miles north of the Trenton station.