The tinctures in the arms reflect the fact that both of Mr Pettigrew’s parents were Scots and that since the age of 11 he has worn the colour blue, first as part of his school uniform and later during his service with the Royal Air Force. The shape of the pile reflects his wife Verina’s first name: by courtesy she bears the arms on a cartouche differenced by a blue lozenge. The palmer’s staff appeared in the arms granted in 1634 to William Palmer of London who, in 1605, founded the school Mr Pettigrew attended. The staff used to be carried on pilgrimages. In the context of these arms it signifies the support that we all need during our journey through life. The crest of a hobby issuing from the coronet is a pun signifying Mr Pettigrew’s lifelong interest in both natural and man-made flight, heraldry and falconry as well as his service with the RAFVR(T). The garb appears twice in the arms of Sawbridgeworth , where he now lives and where he commanded a unit of the Air Training Corps.