When Munnings Sawin was born about 1720, in Marlborough, Middlesex, Massachusetts Bay Colony, British Colonial America, his father, Joseph Sawin, was 29 and his mother, Lydia Payne, was 40. He married Rebecca Munroe on 12 May 1747, in Weston, Middlesex, Massachusetts, United States. They were the parents of at least 3 sons and 3 daughters. He died on 28 June 1807, in Marlborough, Middlesex, Massachusetts, United States, at the age of 88.
English: from the Middle English personal name Sawin, Sewin (Old English Sǣwine, from sǣ ‘sea’ + wine ‘friend’; compare Sainsbury ). This surname is now rare in Britain.
History: The name was brought to Watertown, MA, by John Sawin (born c. 1620 in Boxford, Suffolk, England).