This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/rw/xY.2ADI/398.1 Message Board Post: I hope you mean Killingworth,CT. It is located in the Southern part of Middlesex County. Killingworth at the time you are indicating was referred to as North Killingworth and Killingworth depending on the area. The lower part then became known as Clinton,CT in the mid 1800's. Mostly farm land, and low population. I hope this will help answer your question. If I can help further ,contact me. Tricia