Viscounts Dungannon First holder Arthur Hill-Trevor, 1st viscount Dungannon * c. 1710 Records #3 Holders Family filter On/Off 1 Arthur Hill-Trevor, 1st viscount Dungannon * c. 1710 2 Arthur Hill-Trevor, 2nd viscount Dungannon * 1763 3 Arthur Hill-Trevor, 3rd viscount Dungannon * 1798 Corrections and Updates To suggest a correction or an update. Click Here