Canon Sheehan Literary Society Papers, 1972-1982 7 items Cant family collection, ca. 1916 - ca. 1950 11 items Cardall Photographic Collection 1400 items [Cartoons and illustrations] 21 items Cased Photographic Prints [graphic] 5 items Casement Papers 89 items Castle Oliver Papers 14 items Castles of Ireland 583 items Castletown, Lord Bernard Edward Barnaby FitzPatrick, Papers, 1748-1937 11 items Catholic Parish Register Microfilms 4664 items Ceannt and O'Brennan Papers, 1851-1953 2250 items Charles Acton Collection, 1943-1986 77 items Charles Gavan Duffy Papers 7 items Charles Gavan Duffy Photographic Collection Collection-level description only Charles Gavan Duffy Photographic Collection [graphic] 1 items Charles Henry Locke's correspondence, 1853-1863 18 items Cheque stubs, vouchers and statements of account relating to Roger Casement 83 items Childers Papers 19 items Christopher Robson and Bill Foley papers 44 items Christopher Robson Photographic Collection [graphic] 1920 items