He was born on 14 June 1904, the son of Edgar Snowden Appleyard and Elizabeth Whitehead of Huddersfield, England.
Appleyard attended Almondbury Grammar School and then was admitted to the Cambridge as a King’s College scholar.
He spent several years on research in the Cavendish Laboratory.
[1] At the University of Chicago for the 1931–1932 academic year, Appleyard was awarded with a Rockefeller fellowship.
[2] Appleyard died on 15 June 1939 through injuries caused by a fall.