| Section | Summary |
| The Dunnes of Ireland | Origin of name and genealogy from earliest times |
| O’Dunne Arms | Ilustration and description of Coats of Arms |
| Some significant Dunne events | Specific dates from 10th to 20th century |
| The Barony of Tinnahinch | Dunne territory description and photo |
| Titled Irish Dunnes | Dunnes with titles (Lord, Count, Sovereign, Sir) |
| Extracts from History | Fourteen pages of history from 12th-20th century |
| The Castles of Tinnahinch, Castlebrack and Brittas | Descriptions/history of three major Dunne castles |
| General Edward Dunne | Biography of General who lived from 1763-1844 |
| Major General Francis Plunkett Dunne | Lived 1801-1874, head of Clan; Queen’s Co. M. P. |
| Mother Amadeus Dunne | Foundress of Ursulines in Montana and Alaska |
| Chief Justice Edmund F. Dunne | Chief Justice of Arizona; Papal Count. |
| Dom Frederic Dunne | First American Trappist Abbot |
| Rev. Patrick Dunne | Assisted 4000 Irish to emigrate to Australia in 1862-63 |
| Mary Chavelita Dunne | Famous author better known as George Egerton |
| Finley Peter Dunne | Famous exponent of American-Irish humorous satire |
| Irene Dunne | Hollywood actress who received five Oscar nominations |
| Seán Dunne, T.D. | Prominent Member of Irish Parliament |
| Dunnes in Religious Orders | Biographical summary of 9 Bishops and several others |
| O’Dunne Pedigrees: The Main Line | Trees showing heads of major branches and associated information from the 17th to 20th century |
| Division of the Land | History of division of Dunne territory in 1618 |
| O’Dunne Pedigrees: Brittas, Ards, Wells & Catholic Lines | Trees showing heads of major branches from 17th to 20th century |
| Dunne Miscellania | Includes a Song called "Mr. Dunne" |
| Maps relating to Dunnes | Shows key locations of Dunnes in Ireland |
| Chief Rents | Description of rents paid to Dunne Chiefs up to 1613 |
| Dispersion | Detailed analysis of Clan dispersion in Ireland from 1649 to 1995 and summary of distribution internationally |
| Religion/Churches | Religion of Dunnes and churches built by them |
| O’Dunne Castles | Description and history of Dunne castles |
| Landowners in 1876 | Dunne landowners and acreage by County |
| Dunne Biographies | Famous Dunnes from around the world from 12th-20th century |
| Some Books/Documents relating to the Dunnes | Reference information for further reading or research |
| Appendix I - Uí Riagáin Tombstone Inscriptions | Three pages of Tombstone Inscriptions from Castlebrack, Rearymore, Kilmanman and Rosenallis cemeteries |
| Appendix II - Description of Tinnahinch in 1801 | Description of agriculture by Sir Charles Coote |