The majority of the area which is now incorporated as the Village of New Millford was formerly known as New Milford (one "l") and Morristown.
A History of New Milford and the New Milford Cemetery Listing are available at the Rockford Public Library. A history of the cemetery is in issue 7:141 of the Illinois State Genealogical Society newsletter.
Two churches are currently located in New Millford.
Long-time, well-known surnames of the area include BAXTER and EVANS.