Index: Papers of John Adams, Volume 20, O

• Oaths
• O’Bryen, Capt. Richard (of the Dauphin)
• Ogden, Rev. Uzal (of Newark, N.J.)
• Ohio River
• Ohio Territory
• Olcott, Simeon (N.H. judge)
• Old House (Peacefield, now Adams National Historical Park)
• Oliver, Peter, Sr. (1713–1791, loyalist)
• Oliver, Peter, Jr. (1741–1822, son of Peter, Sr.)
• Oracle (London)
• Orangists
• Oswald, Richard (Brit. peace negotiator)
• Otis, James, Jr. (the Patriot)
• Otis, Samuel Allyne, Sr. (secy. of the Senate)
• Ottawa Nation
• Otto, Louis Guillaume (French charge d’affaires in U.S.)
• Ottoman Empire (Sublime Porte)
• Oughton, Thomas
• Ovid
• Owen, Daniel (deputy gov. of R.I.)