Diary of John Adams, volume 1 Previous document in volume 17 Saturday. Next document in volume 19 Monday. 18 Sunday. JA 18 Sunday. Adams, John 18 Sunday. A fair morning. Heard Mr. Maccarty.1 1. Rev. Thaddeus Maccarty (1721–1784), who at the preceding Harvard commencement had singled out JA to serve as schoolmaster in Worcester.