Where in Massachusetts?
Carver, Clifford Nickels, Litt. B. The Carver Family of New England: Robert Carver of Marshfield and his Descendants, Privately Printed, 1935.
Seth (who settled at "Great Egg Harbor, N.C.") [could be a typo?], son of Nathaniel Carver (and his first wife, Mary Lazell), son of (Deacon) Eleazer Carver (and his wife, Experience Blake), son of John Carver (and his wife Millicent Ford), son of Robert Carver (and his wife Christian, surname unknown).
Robert Carver was of Marshfield, MA, and was the nephew of Gov. John Carver, first president of "Plimouth Plantation" and a Mayflower passenger and signer of the Mayflower Compact. Robert was NOT on the Mayflower, and his uncle John who died the spring following the Mayflower's landing had no issue. John's brother, Isaac Carver, was the father of Robert Carver. Isaac and John Carver (who were both born in Doncaster, Yorkshire, England) had gone to Leiden, Holland when they became Separatists. Isaac stayed in Leiden and died there.
I don't know if that will help your research or not.