The Pennacook, also known by the names Penacook, and Pennacock, were a North American people of the Wabanaki Confederacy who primarily inhabited the Merrimack River valley of present-day New Hampshire and Massachusetts, as well as portions of southern Maine. They are also sometimes called the Pawtucket people or the Merrimack people.
The Pennacock people are also known as the southern people of Maine
They only occupied a portion of southern Maine. Their names are not in anyway the "southern people of maine"