Norwell was originally settled in about 1628. In 1637 Cornet Robert Stetson was granted a tract of land about four miles along the North River. This area was part of Old Scituate (incorporated in 1636, and including all of Norwell, most of Hanover, and portions of present day Cohasset, Marshfield, Pembroke, and Hanson).
1849 Norwell split from Scituate and became know as South Scituate. In 1888, it changed its name to Norwell, after Henry Norwell, a wealthy Boston merchant and benefactor to the small rural town.
Here are some of my favorite websites:
Norwell, MA history (http://www.norwellma.com/history.htm)