Hubert Maxwell Lenox-Conyngham was born in Dublin. He was a son of Sir William and Lady Lenox-Conyngham of Springhill House, Moneymore, and the brother of John Staples Molesworth Lenox-Conyngham. He joined the Army Veterinary Service Corps in 1897 and served in East Africa (Somaliland Campaign) in 1902-03. During the First World War, he attained the rank Major and was ‘Mentioned in Despatches’ and awarded the D.S.O. (Distinguished Service Order). He died of illness on Friday the 15th March 1918 at Chester and was buried in Dublin.