His The league of north and south ... 1886 t.p. (Sir C. Gavan Duffy, K.C.M.G.)
Patriot Parliament of 1689, 1893: title page (The Hon. Sir Charles Gaven Duffy, K.C.M.G.)
OCLC, March 7, 2019 (access points: Duffy, Charles Gavan, Sir, 1816-1903; Duffy, C. Gavan, Sir; predominant usage: Sir Charles Gavan Duffy; other usage: Sir C. Gavan Duffy; C. Gavan Duffy)