[Letter from E.[dward] C.[libborn] (15 Charles Place, Plymouth, England) to Eugene O'Curry, mostly regarding Clibborn's recent marriage and requesting information on the history of Devon and Cornwall.]

[Letter from D. H. Kelly to Eugene O'Curry, requesting help in the translation of a passage from 'Lebor na Huidre'.]

[Letter from Whitley Stokes (Lincoln’s Inn) to James Henthorn Todd, concerning Todd’s "Cogadh Gaedhel re Gallaibh" and the editorial conventions he adopts.]

[Letter from John O'Donovan (Dublin) to William Reeves, discussing the meaning of the word Dobhar.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, discussing the forthcoming elections in Trinity College, Dublin.]

[List of queries in William Reeves's hand, answered by John O'Donovan.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage House, Ballymena, Co. Antrim), discussing the meaning of some Irish words, particularly from the Belfast bell inscription.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves, discussing the provenance of the Belfast bell, and referring to an internal dispute in the Royal Irish Academy.]

[Letter from John O'Donovan (Oxford) to James Henthorn Todd, discussing the Life of St. Columkille manuscript in the Bodleian Library.]

[Letter from William Reeves ([Parsonage], Ballymena, Co. Antrim) to John O'Donovan, incorporating O'Donovan's response to queries.]

[Letter from John O'Donovan to William Reeves (Parsonage, Ballymena, Co. Antrim), describing his work on the Annals and commenting in passing on the Coercion Bill.]

[Letter from William Reeves ([Parsonage], Ballymena, Co. Antrim) to John O'Donovan, providing a new transcription of the Belfast bell inscription; includes O'Donovan's response.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves, returning answers to some queries and discussing work on the Annals.]

[Letter from John O'Donovan to William Reeves, concerning the translation of the Culdei-celide De tract.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves, discussing extracts from Irish manuscripts.]

[Letter and note from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Ballymena, Co. Antrim), discussing the O'Neill and O'Donnell genealogies.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves, seeking advice on producing a subject index for his book.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, discussing the meaning of the Irish word buidechuir.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Ballymena, Co. Antrim), discussing difficulties of his work.]

[Letter from John O'Donovan (Trinity College, Dublin) to William Reeves (Lusk, Co. Dublin), discussing the Irish names for the names of the week.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, concerning the Life of Patrick.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage House, Ballymena, Co. Antrim), discussing his work and his impending move to Belfast.]

[Letter from John O'Donovan (47 Essex Street, Dublin) to George Petrie (21 Great Charles Street, Dublin), discussing the meaning of some Irish words, as well as Cormac Mac Cullenan's will.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, concerning Count Charles MacDonnell's letter.]