Index: Papers of John Adams, Volume 19, O

• O’Bryen, Capt. Richard (of the Dauphin)
• Ochakov, Ukraine
• Ohio Company
• Ohio River
• Ohio Territory
• Old House (Peacefield, now Adams National Historical Park)
• Olney, Col. Jeremiah (of R.I.)
• Orangists
• Orléans, Louis Philippe, Duc d’
• Osborn, John (Boston merchant)
• Osgood, Samuel (Mass. politician)
• Otis, Samuel Allyne, Sr. (secy. of the Senate)
• Ottoman Empire (Sublime Porte)
• Otway, Thomas
• Oudenaarde, Henry (N.Y. merchant)
• Oudenaarde, Marinus (N.Y. merchant)
• Oxfordshire, England
• Oxford University