Poole was born in Paddington, London, the son of Professor Reginald Stuart Poole of London and Eliza Christina Forlonge of Tasmania.[2] He was educated at Bedford School and at the University of London. He was articled to Sir George Lewis, 1st Baronet in 1887, admitted as a solicitor in 1891, and became a partner of Lewis and Lewis, one of the best known legal firms in the country, in 1894, becoming sole partner of the firm in 1927. He was a member of the Council of the Law Society, between 1919 and 1940, President of the Law Society, between 1933 and 1934, Chairman of the Discipline Committee of the Law Society, a Member of the Royal Commission on Police Powers and Procedure, in 1929, and a Member of the Committee appointed by the Lord Chancellor to consider the Law of Defamation, in 1939.[3]
Poole was made a Knight Bachelor in the 1928 Birthday Honours, gazetted on 1 June 1928,[4] and a Knight Commander of the Royal Victorian Order in 1934. He died in London on 11 August 1941, aged 76.[1]