Brigadier-General Henry O'Donnell CMG (10 September 1852 – 31 October 1928) was a British Army officer who commanded the 35th Division on an acting basis during the First World War.
O'Donnell was commissioned into the West Yorkshire Regiment on 10 May 1882.
[1] He saw action during the First World War, became an authority on military training and wrote significant papers entitled "Catechism on Field Training"[2] and "Lectures to Recruits: The training of the soldier, a lecture to recruits, and Intercommunication and passing orders and messages".
[3] He became commander of 106th Brigade on 13 May 1916[4][5] and briefly commanded the 35th Division on an acting basis from 17 September 1916 to 23 September 1916.
[6] He was appointed a Companion of the Order of St Michael and St George in the 1919 Birthday Honours.