[1] He was born in Chorley, Lancashire, the eldest son of Isaac Waring, a schoolmaster, and his wife, Catherine Holburt.
[1] He was demonstrator of anatomy and teacher of surgery at St Bartholomews and rose to become consulting surgeon.
During the First World War he was a colonel in the Royal Army Medical Corps and consulting surgeon in addition to his hospital work.
He was also the first vice-president of the St Bartholomew's Hospital Medical College and instrumental in getting it affiliated to the university.
In 1900 he married Annie Cassandra (d 1948) and they had a son, Alfred Harold (1902–1981), who was a research engineer at ICI.