Disputed origins
https://www.wikitree.com/wiki/Unknown-483310
Sarah was born about 1686 (assuming she was the average age of 20 at the estimated date of her marriage). Her parents and family name are not known. (She can be seen to be some family trees as Sarah Blanchard, the sister of Mary Blanchard, the second wife of her husband Joseph. Records supporting this have not been found, but it's a possibility.)
John Blanchard, Sr. & Abigail Blanchard did have a daughter, Sarah Blanchard born born Aug. 19, 1686 at Weymouth, so I’ve created a separate profile for that birth.