Biographical information Fr John Ffrench SJ which includes 'A few particulars relative to the Hon. and Rev. John Ffrench SJ', Dolllard, Printinghouse, Dublin (1887), 'Memoirs of Father Ffrench of the Society of Jesus', Manresa Press, Roehampton (1898) and copy of a letter from Fr Ffrench, St Stanislaus College, Tullabeg, County Offaly to Mother Ursula Querk, Ursuline Convent, St Joseph's, Sligo concerning his nephew's accident and his cure due to the intercession of (6 February 1854, 4pp), with note from Sr. M. St. Dominic, Ursuline Convent, St Joseph's, Sligo (20 September 1983).

Documents relating to Fr John Gwynn's service as a chaplain attached to the 1st Battalion of the Irish Guards, B.E.F., France. Includes:

• letters written by Fr John Gwynn volunteering to be a chaplain (23 August – 8 November 1914, 2 items);
• documentation dealing with Fr Gwynn's appointment as a military chaplain (9 November 1914 - 16 March 1915, 9 items) including the certificate appointing him chaplain to the Forces, 4th Class, Land Forces, (Temporary) (16 March 1915, 1p.);
• certificate of safe conduct with attached photo of Fr Gwynn (4 July 1915, 1p.);
• letters and notes sent to the Irish Fr Provincial Thomas V. Nolan SJ (n.d., 3 items);
• official letters sent to the Irish Fr Provincial Thomas V. Nolan SJ following Fr Gwynn’s death in action on 12 October 1915 (11 October 1915 – 19 September 1921, 23 items);
• pamphlet 'A Great Irish Chaplain: Father John Gwynn SJ' by John Bithrey SJ (n.d., 20pp);
• material on centenary of Fr Gwynn's death - the Bishop of Arundel and Brighton celebrated Mass at the Sacred Heart Church, Caterham, Surrey, England where the Irish Guards have erected a tablet in Fr Gwynn’s memory (11 October 2015).