1. Archives + Libraries:
Middlesex County Historical Society (accessed 12 February 2012): Although it has resources for all of Middlesex County, the Middlesex County Historical Society Collection focused on Middletown.
Russell Library (accessed 12 February 2012): The public library for Middletown, Russell Library has a significant local history collection.
Wesleyan University Special Collections & Archives (accessed 19 April 2012): Wesleyan University's Archives also stores local records.
The Hartford Courant (accessed 12 February 2012): The statewide newspaper, The Courant is the most widely read local newspaper.
Middletown Patch (accessed 12 February 2012): A branch of Patch.com, the Middletown Patch has a regular Middletown history column.
The Middletown Press (accessed 12 February 2012): The major local newspaper, the Press is also available on microfilm at the Russell Library.
Middletown Probate Court (accessed 12 February 2012): The court is located at 94 Court St., Middletown.
4. Vital Records:
Department of Public Health, City of Middletown (accessed 12 February 2012): In Connecticut, birth records are sealed for 100 years.