He claimed to be Sir Roger Tichborne, heir to estates at Tichborne near Alresford, Hampshire, and Upton House, Poole, Dorset. The Upton estate had been in the ownership of the family from around 1828 when it was acquired by Edward Tichborne Doughty. The latter having no sons, his nephew, Sir Roger Tichborne, became heir to the family fortunes.
To help CPR practitioners to remember the order of the procedural steps, the acronym ABC was taught to stand for Airway, Breathing, Circulation. In 2010, the order of the steps was changed to Circulation, Airway, Breathing, so the acronym is now CAB.
He combined the A (Airway) and the B (Breathing) of CPR with the C (chest compressions), and wrote the book ABC of Resuscitation in 1957, which established the basis for mass training of CPR. This A-B-C system for CPR training of the public was later adopted by the American Heart Association, which promulgated standards for CPR in 1973.