Chatham was regranted in 1770 by his nephew, Governor John Wentworth, to a group including Samuel Langdon, president of Harvard College and creator of the "Blanchard Map" of the North Country.
He also edited two volumes of Theodore Parker's Writings (1914), introduced Newton's Lincoln and Herndon (1913), and wrote brief biographies of Samuel Langdon (president of Harvard College), of Ellery Channing and of Mrs. Abbott-Wood of Lowell.
In 1873, the need of a school in connection with Wesleyan Mission work was urged by Samuel Langdon and so a Day and Boarding school was built in Katukele,Kandy Sri Lanka.
In 1761, in connection with Colonel Joseph Blanchard, he prepared and published a map of New Hampshire.
Samuel Beckett | Samuel Taylor Coleridge | Samuel Johnson | Samuel Pepys | Samuel L. Jackson | Samuel R. Delany | Samuel Barber | Samuel Goldwyn | Samuel | Samuel Alito | Samuel Butler | Samuel Ramey | Harry Langdon | Samuel Morse | Samuel Gompers | Samuel de Champlain | Samuel Sewall | Samuel Richardson | Samuel Hill | Samuel Fuller | Samuel Purchas | Samuel Hood, 1st Viscount Hood | Samuel Foote | Samuel Butler (novelist) | Samuel Sánchez | Samuel Rogers | Samuel Rivera | Samuel Pierpont Langley | Samuel J. Tilden | Samuel Gridley Howe |