The Dignity of the Barony of Blackhall was registered in the Scottish Barony Register on 15th March 2012 under reference SBR 2012/4

Standard: The badge appears in the second compartment together with the crest in the first and third compartment of a standard three and a half metres in length of four tracts Azure and Argent with split ends and having a St. Andrew’s cross Argent in the hoist, with the motto in letters Or upon two transverse bands Gules, the words “Oh Pilgrim Heart” upon one band and the words “Forget Not The Cat” upon the other.

The Gillespies are an associated family of the Macpherson clan, the name deriving from the 13th century progenitor of clan Chattan, the Clerich, Gillespic. The Lord Lyon grants armorial bearings to Scots Gillespies designating them as cadets of Cluny, the Chief of Macpherson, although the Gillespie 3-masted galley, or Lymphad, is differenced from the single-masted, Macpherson of Cluny galley, but maintains the Lord-of-the-Isles cadency. The crest is the Chattan Wild Cat, rampant to emulate the Scottish Lion, holding a pomeis to represent the original armiger's spouse.

The escutcheon includes symbols of the original armiger's military service and beliefs, and, especially, his desire to show the Lymphad being rowed into the wind. The motto also derives from the Chattan "Touch not the cat bot a glove," motto; the original armiger wanted his foreign offspring never to forget their Scots Chattan origins, and, initially quoting from Pilgrim's Progress, chose "Oh pilgrim heart, forget not the Cat."