[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 (Parsonage House, Ballymena, Co. Antrim), discussing Irish clans and the genealogies of O'Neill and MacDonnell.]

[Letter from William Reeves ([Parsonage], Ballymena, Co. Antrim) to John O'Donovan, concerning mainly Irish place names; includes O'Donovan's response.]

[Letter from William Reeves (Parsonage House, Ballymena, Co. Antrim) to John O'Donovan, concerning Irish place and family names; includes O'Donovan's response.]

[Letter from Johannes Donovannides [John O'Donovan] (36 Buckingham Street, Dublin) to William Reeves (Ballymena, Co. Antrim), regarding his plan to contact the Pope, and discussing O'Curry and the Royal Irish Academy.]

[Letters from John O'Donovan, Dublin to William Reeves (Diocesan School, Ballymena, Co. Antrim), discussing his and O'Curry's transcription of the Brehon Laws.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage, Ballymena, Co. Antrim), transcribing a manuscript passage about the burning of Rathmore by Edward Bruce.]

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

[Letter from William Reeves ([Parsonage], Ballymena, Co. Antrim) to John O'Donovan, asking for some translations; includes O'Donovan's response.]

[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 (Parsonage House, Ballymena, Co. Antrim), discussing the O'Neill genealogy in the light of claims made by one Henry Alexander.]

[Letter from William Reeves (Parsonage House, Ballymena, Co. Antrim) to John O'Donovan, asking for assistance at translating an Irish text; O'Donovan's response, in which he comments on the current poverty, famine and unrest in Ireland.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage House, Ballymena, Co. Antrim), discussing place names in Armagh and the state of antiquarian studies in Ireland.]

[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 (Parsonage House, Ballymena, Co. Antrim), discussing Reeves's work, and deploring the decline of interest in Gaelic literature.]

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage House, Ballymena, Co. Antrim), concerning his work, health and his desire to emigrate to America.]

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

[Letter from William Reeves (Ballymena, Co. Antrim) to John O'Donovan, concerning the translation of some extracts from the Annals of Ulster; includes O'Donovan's response.]

[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 (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage, Ballymena, Co. Antrim), enclosing some answers to queries, and discussing John O'Neill's genealogy.]

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

[Letter from John O'Donovan (8 Newcomen Place, North Strand, Dublin) to William Reeves (Parsonage, Ballymena, Co. Antrim), returning answers to Reeves's queries and reporting on his own work on the Annals of the Four Masters.]

[Letter from William Reeves (Parsonage, Ballymena, Co. Antrim) to John O'Donovan (8 Newcomen Place, North Strand, Dublin), incorporating O'Donovan's response to queries.]