Originally part of Cockermouth, which was separated in 1792 when that town was renamed Groton. Hebron was named in honor of Hebron, Connecticut, the native town of many settlers, just as Groton, Connecticut, was home to many settlers in Groton. The Phelps family was prominent among this group, and Samuel Phelps' father-in-law, General Israel Morey, is known as the inventor of an early steamboat.
