Letters to Charles King O'Hara from his father Charles O'Hara (the younger), describing the assassination of Spencer Perceval, 12 May 1812.

Míreanna comhchosúla

• Letters to Charles O'Hara, the younger, and to his wife Margaret from members of their family, c. 1801.
• The Theory of Evidence (Dublin, 1761) with annotations by Charles O'Hara, the Younger, c. 1765-1781.
• Letters to Charles King O'Hara from his father Charles O'Hara (the younger), with some letters in reply, mainly re estate and financial affairs, but containing references to political topics, c. 1802-1819.
• Letters to Charles Kean O'Hara from Valentine O'Hara re the O'Hara Papers with particular reference to Anthony O'Hara, Knight of Malta, and also to the Edmund Burke letters to Charles O'Hara, the elder, 1930-1932.
• Stud book kept by Charles O'Hara, the Elder, 1762-1775; Charles King O'Hara, 1825-1835, and Charles Kean O'Hara, 1884-1938.