Subseries C. Business and Personal Papers documents Charles' activities as a member of the Whig Party and the First Religious Society, a register of the Probate Court, and an inventor. Charles' correspondence includes political, register's and inventor's correspondence, as well as personal letters from his parents and siblings. The financial and legal papers contain personal accounts, Whig committee subscription lists, Probate Court papers, Charles' patent for an atomizer, and the charter of the Newburyport Screw Manufacturing Company, of which Charles was a founding member. The invention drawings include sketches of Charles' improved versions of skates, armor plating for ships, and a steamship engine signaling device base on the telegraph. The miscellaneous papers contain copied business correspondence of John T. Balch, miscellaneous notes and printed material from the Probate Court, and pamphlets describing Frederick Gisborne's engine signaling devices.