Holt was born in
Kingston on Thames, Surrey, the son of Maurice Holt and his wife, Ada Holt. He was educated at
King's College School and
King's College Hospital. He joined the Army in 1887. He served throughout the First World War, and was made
Knight Commander of the Order of St Michael and St George (KCMG) in 1917 and
Knight Commander of the Order of the Bath (KCB) in 1919 in connection with his services. He was also made a Commander of the
Legion of Honour by the French government in 1919. He retired from the army in 1922. Between 1928 and 1922, Holt was
Colonel Commandant of the Royal Army Medical Corps. == Death ==