The first Trefethen in Newcastle NH was Henry Trevethan. Clerks spelled the way they heard so it soon became Trefethen, and many other odd spellings.We still do not have proof of Sarah (Trefethen) Staples parents. Much of what has been published about her is mixed up. Robert Brooks in Maine has successfully proved that her age is not as written in the stories He is a descendant. Write to me privately and I can give you his email address.He is a very careful researcher.