Correspondence relating to O'Curry's work with the Ordnance Survey and the Royal Irish Academy and general correspondence on antiquarian, genealogical, linguistic and literary matters; correspondence as Professor of Archaeology and Ancient Irish History in the Catholic University, mainly concerning his academic and research interests; some personal correspondence, and personal financial and family documents.

Letters from correspondents primarily in the British Isles, but also from North America and the Middle East, encompassing a wide range of antiquarian concerns including archaeological finds, anatomy, sigillography, topography, numismatics, and Frazer's collection of autographs and prints.

[Draft letter from Eugene O'Curry (2 Portland Street North, Dublin) to Rev. Philip Fitzgerald, concerning Irish poetry.]

[Copy of a letter from Eugene O'Curry (2 Portland Street North) to A. W. Barnett, concerning the erection of a monument to [John] Lanigan; and the skirmish between the 'Waterford Citizen' and the 'Irishman'.]

[Draft letter from Eugene O'Curry to William Lane Joynt, concerning a lecture to be given by Joynt.]

[Draft letter from Eugene O'Curry to Rev. Harry Longueville Jones, accepting the status of honorary member of the Cambrian Archaeological Association.]

[Draft letter from Eugene O'Curry to an unnamed correspondent, commenting on his poetry.]

[Certificate of Prospect Cemetery for the interment of Henry Curry, 2 Portland Street, Dublin, aged 28 years.]

[Certificate of Prospect Cemetery for the interment of Anne Curry [née Broughton, wife of Eugene O'Curry], Portland Street, Dublin, aged 52 years.]

[Draft letter from Eugene O'Curry, praising the unnamed recipient's ability to write the history of Limerick.]

[Letter from [Jeremiah] Molony (Rosscarbery, Co. Cork) to Eugene O'Curry, requesting information on ecclesiastical history.]

[Letter from Mathew Dawes (Westbrooke, Bolton, England) to Eugene O'Curry, concerning research into his family tree.]

[Letter from Mathew Dawes (Westbrooke, Bolton, England) to Eugene O'Curry, concerning research into his family tree.]

[Certificate of Prospect Cemetery for the interment of Eugene Curry, Portland Street, Dublin, aged 23 years.]

[Receipt for payment of Wide Street Tax by Eugene O'Curry.]

[Research notes on the names 'Corr' and 'O'Coir'.]

[Transcript from a book 'written by Calyen'.]

[Demands and receipts for Income Tax payments.]

[Letter from John O'Daly (9 Anglesea Street) to Eugene O'Curry, discussing a transcription of a fairy lullaby entitled 'An Seoithin'.]

[Letter from Mat Horgan P. P. (Blarney, County Cork) to Eugene O'Curry, containing a translation of an address to Daniel O'Connell by the Bard of Desmond.]