Founded in 1870, the Nashua Historical Society seeks to preserve the history Nashua through a variety of means, including collecting relics, outreach and education. The Society is a nonprofit organization run by a volunteer staff, which runs an array of programming throughout the year. It's financed through membership and donations.
The Society’s office is located at The Florence H. Speare Memorial Museum. The organization also runs The Abbot-Spalding House Museum.