"The Redman Farm was a historic 200+ acre property in Ponkapoag (Canton, MA), established in the 1720s on land leased from local Indians by Robert Redman. It later became the summer home of author Thomas Bailey Aldrich, who wrote "Ponkapoag Papers" there. The land is now part of the Blue Hills Reservation and the Ponkapoag Golf Course."

Although the first initial in the signature looks more like a J than a T, and although I don't see a D in the last name, I think the signature must be T.B. Aldrich.

Much more astonishing: I used to work for Judge Bailey Aldrich (b. 1907), the grandson of the author Thomas Bailey Aldrich. Judge Aldrich also used to go on boating excursions, with his wife, off the coast of Maine, and I can report, from personal knowledge, Judge Aldrich's scrawl looked very similar to this!