Was the Dutee Jerauld you are researching born in East Greenwich Rhode Island in 1748? Was he married to Almy Niles or Hannah Cash (or someone else). Marriage date for Almy was 1771, marriage date to Hannah was 1786.
Dutee and Almy had a son Dutee but he died in infancy in 1773.
Dutee Jerauld and Hannah Cash had a son Dutee born 6 Aug 1792 in Yarmouth. He married Hulda Holbrook in 1816.
Is this your ancestor? Looking forward to hearing about your trip to Waltham.