Letters to the Irish Fr Provincial Thomas V. Nolan SJ from Fr Francis M Shaw SJ written while serving as chaplain in France, India and Mesopotamia (3rd General Hospital, B.E.F., France; No. 37 and No. 17 Casualty Clearing Station, B.E.F., France; 1st Battalion Hampshire Regiment, B.E.F., France; 11th Field Ambulance, B.E.F., France; No. 16 Casualty Clearing Station, Mesopotamian Expeditionary Force).

Letters to the Irish Fr Provincial from Fr John Burden SJ written while serving as chaplain in Catterick Camp, Yorkshire and with the 6th King’s Own Scottish Borders in Northumberland; in Nottingham (where he was promoted to Senior Chaplain (S.C.F. (R.C.) ); in India, South Africa and Iraq with Paiforce (Persian and Iraq Forces); 114th Rest/Transit Camp; 162nd Transit Camp in Damascus and Palestine. Some letters in the form of airgraphs. Includes his last letter written on 28 March 1946 concerning his release from the Army in May.

Letters to the Irish Fr Provincial from Fr Fergus Cronin SJ written during his time as a chaplain while serving in the Royal Artillery Service Corps in Barry, South Wales; the Faeroe Islands; 101 Military Convalescent Depot, Grange Camp, Bedford and with Paiforce in Iraq. Includes:

• His first letter reporting that he has been informed by the War Office of his appointment as military chaplain effective from 11 May 1942 (24 April 1942, 1p.);
• References to the question of his direct repatriation to Hong Kong (9 January – 22 July 1946, 5 items) and waiting in Haifa in July 1946 to go to Cairo, there to await repatriation to Hong Kong.

Documents relating to Fr Austin Hartigan's service as military chaplain. Includes:
– certificate appointing Fr Hartigan chaplain to the Forces, 4th Class, Land Forces (Temporary) (12 January 1916, 1p.);
– letters written to the Irish Fr Provincial Thomas V. Nolan SJ by Fr Hartigan while serving in Mesopotamia with the Connaught Rangers (20 March 1916 – n.d., 5 items);
– documents relating to Fr Hartigan's death in Amara on 16 July 1916 (from jaundice) (27 July 1916 - 15 August 1918, 12 items).