Arms: Quarterly: 1st & 4th grand-quarters (for MacDonnell) 1st, Or, a Lion rampant Gules; 2nd, Or, a dexter Arm issuant from the sinister fess point out of a Cloud proper, in the hand a Cross-Crosslet fitchée erect Azure; 3rd, Argent, a Ship with sails furled Sable, 4th, per fess Azure and Vert, a Dolphin naiant in fess proper. 2nd & 3rd grand quarters (for Kerr) 1st & 4th, Azure, a Sun-in=Splendour Or; 2nd, Gules, on a Chevron Azure, three Mullets Gules; 3rd, Sable, on a Chevron between three Unicorn's Heads Argent, three Mullets Sable. Crests: 1st A dexter Arm embowed fesswise, couped at the shoulder, vested Or, cuffed Argent, holding in the hand a Cross-Crosslet fitchée erect Azure (for MacDonnell); 2nd, A Sun-in-Splendour Or (for Kerr).
Supporters: Dexter: A Savage wreathed about the temples and loins with Ivy, all proper; Sinister: A Falcon wing inverted proper, beaked membered and belled Or.
[註釈 1]