), nephew of Colonel Anthony John Stewart Crockett RM, OBE (Mil.
), ADC, and a descendant of Blessed Ralph Crockett, an English Martyr.
He practises medicine from his rural practice in Shrivenham, Oxfordshire, where he provided services for the defence academy.
Crockett is the author of a number of works on respiratory medicine topics, with a focus on improving the standard of primary care in this area.
Dr Crockett founded a primary care group to promote the improvement of the treatment of these conditions by local GPs rather than by resorting to national specialists.