Welcome to Hillsborough County New Hampshire Genealogy and History

Volunteers working to put historical data online

My name is Helen Coughlin and as your county host I try to post as much data online as possible in order to make it freely available to all. We gratefully accept contributions of raw data such as census information, marriage/birth/death records, obituaries, county histories, biographies, old newspaper items, anything that would help someone build their family tree.
Feel free to e-mail me with your contributions - every little bit helps.

I regret that I am unable to do personal research.

Hillsborough County was one of the five original counties created by the Provincial Act of 1769. It was named for Wills Hill, the Viscount Hillsborough who was the British Secretary of State for the Colonies at the time. The county began to execute its legal authority on March 19, 1771, when approval was received from the king of England. The original jurisdiction of the county included 13 towns that are now in Merrimack County. In 1823 those towns were detached and geographical boundaries of Hillsborough County were defined as they exist today. Over several years ending in 1869, county administration functions were moved from Amherst to the current seats of Manchester and Nashua.