"Certificate respecting the Rev. John Seccombe," 1795 August

One leaf (pages 301-302) of the August, 1795 issue of Massachusetts Magazine with an editorial regarding the authorship of Father Abbey's Will. The article identifies John Seccombe as the author based on information provided by "Thaddeus Mason, Esq. of Cambridge, the only surviving classmate, and very intimate friend of the Rev. John Seccombe."

Letter from William Croswell to John Jones, [1808]

Draft of a letter concerning Croswell's Mercator map.

Letter from William Croswell to [John] Bonnycastle, 1808 May 6

Draft of a letter to John Bonnycastle of the Royal Military Academy in Woolrich, England, requesting a recommendation.

Letter from William Croswell to John Bonnycastle, [1808 May]

Draft of a letter requesting help in publishing a map.