The Johnson Family Papers consist of correspondence, wills, diplomas, marriage certificates, obituaries, photographs, genealogical notes and family histories, land grant certificates, military documents, a book of autographs, and other papers and documents of the Johnson and related families, direct descendants of the Presidential Adams family. The family was located chiefly in Utica, New York.

Typescript copies of letters (approximately 40) from James Wadsworth, at various locations in New York State, to Jeremiah Wadsworth of Hartford, Connecticut, concerning land deals and settlement, primarily in Genesee County, New York. Subjects also include Aaron Burr's political ambitions, and negotiations with the British. One letter from Decius Wadsworth to Jeremiah Wadsworth.