Correspondence of A.P. MacDonnell, 1902-5 (MS. Eng. hist. c. 321), is described in M. Clapinson and T.D. Rogers, Summary Catalogue of Post-Medieval Western Manuscripts in the Bodleian Library Oxford, (Oxford, 1991), vol. I, p. 231.
General correspondence and personal papers, 1859-1929. Archive of Antony Patrick MacDonnell, 1st Baron MacDonnell of Swinford, . Bodleian Libraries. https://archives.bodleian.ox.ac.uk//repositories/2/archival_objects/48923 Accessed September 21, 2020.