Our immigrant ancestor was John Slaughter who came to Lynn MA in the late 1600's we believe he was from the Severn River area of Great Britain. Oral tradition says it was either Wales or Gloucestershire. There is a difference of opinion on who his wife was. Some think it was Abiah Bartlett, and others think it was Mary Libby. The family dropped the 'ugh' with 'f' to get the correct pronunciation of name. 'ugh' should have the sound of 'f' as in cough, rough, laughter, etc. Later the 'f' was dropped making it Slater. Most of them resided in MA;CT;RI;VT; and NH. One of them donated money and land to help Dartmouth College get started. My gt. grandfather was listed in the 1870 census as a (blacksmith-ironfinisher)in Black River, NY, my grandfather was a professional photographer in Watertown, NY.
Stephen & Hannah Slater moved to northern New York in the late 1700's.