| Surname | First name | Title | Status | Page |
| Oakes | Medicis | Widow | 354 | |
| Oakes | Theophilus | 354 | ||
| Oakman | Robert | 354 | ||
| Oates | Joseph | 354 | ||
| Oates | Thomas | 354 | ||
| Oatfield | John | 354 | ||
| O'Beaghan | John | 354 | ||
| O'Beaghan | Shan | 354 | ||
| Obeirn | Sarah | 354 | ||
| Obeirn | Wm. O'B. | 354 | ||
| O'Beirne | Connell | 354 | ||
| O'Beirne | Connell | Esq. | 354 | |
| O'Beirne | Margaret | 354 | ||
| O'Beirne | William | Esq. | 354 | |
| Obins | Anthony | 355 | ||
| Obins | Anthony | Esq. | 355 | |
| Obins | Deborah | 355 | ||
| Obins | Hamlet | 355 | ||
| Obins | John | Rev. | D. D. | 355 |
| Obins | John O. | Rev. | D. D. | 355 |
| Obins | Margaret | 355 | ||
| Obins | Mary | Widow | 355 | |
| Obins | Michael | Rev. | 355 | |
| Obins | Michael | 355 | ||
| Obins | Wm. | 355 | ||
| O'Birney | Daniel | 355 | ||
| O'Boyle | Phelim | 355 | ||
| Obre | Edward | Esq. | 355 | |
| Obre | Fras. | 355 | ||
| O'Brien | Catherine | Hon. | Widow | 66 |
| O'Brien | Alice | 355 | ||
| O'Brien | Anne | Widow | 355 | |
| O'Brien | Barbara | 355 | ||
| O'Brien | Barbara | Widow | 355 | |
| O'Brien | Bartholomew | 355 | ||
| O'Brien | Benjamin | 355 | ||
| O'Brien | Brien | 355 | ||
| O'Brien | Bryan | 355 | ||
| O'Brien | Catherine | 355 | ||
| O'Brien | Catherine | Widow | 355 | |
| O'Brien | Charles | Esq. | 355 | |
| O'Brien | Cornelius | 355 | ||
| O'Brien | Cornelius | Esq. | 355 | |
| O'Brien | Crogher M'Thomas | 355 | ||
| O'Brien | Cuogher | 355 | ||
| O'Brien | Daniel | 355 | ||
| O'Brien | David | Rev. | 355 | |
| O'Brien | Dermott | 355 | ||
| O'Brien | Digby | 355 | ||
| O'Brien | Donat | Sir | 355 | |
| O'Brien | Donatus | Esq. | 355 | |
| O'Brien | Edward | 355 | ||
| O'Brien | Edward | Esq. | 355 | |
| O'Brien | Edward | Sir | 355 | |
| O'Brien | Elizabeth | 355 | ||
| O'Brien | Ellinor | 355 | ||
| O'Brien | Fitzgerald | 355 | ||
| O'Brien | Francis | 355 | ||
| O'Brien | Henry | 355 | ||
| O'Brien | James | Rev. | 355 | |
| O'Brien | James | 355 | ||
| O'Brien | James | Esq. | 355 | |
| O'Brien | John | 355 | ||
| O'Brien | John | Esq. | 355 | |
| O'Brien | Julia | Widow | 355 | |
| O'Brien | Lucius | Sir | 355 | |
| O'Brien | Margaret | 355 | ||
| O'Brien | Margaret | Widow | 355 | |
| O'Brien | Mathew | 355 | ||
| O'Brien | Mathew | M. D. | 355 | |
| O'Brien | Michael | 355 | ||
| O'Brien | Gertrude | Widow | 356 | |
| O'Brien | Michael | 356 | ||
| O'Brien | Morgan | 356 | ||
| O'Brien | Morogh | 356 | ||
| O'Brien | Patrick | 356 | ||
| O'Brien | Richard | 356 | ||
| O'Brien | Robert | 356 | ||
| O'Brien | Robert | Esq. | 356 | |
| O'Brien | Sarah | Widow | 356 | |
| O'Brien | Simon | 356 | ||
| O'Brien | Stafford | Esq. | 356 | |
| O'Brien | Terence | Rev. | 356 | |
| O'Brien | Terence | 356 | ||
| O'Brien | Terlogh | Sir | 356 | |
| O'Brien | Terlogh | 356 | ||
| O'Brien | Thomas | 356 | ||
| O'Brien | Timothy | 356 | ||
| O'Brien | William | Rev. | 356 | |
| O'Brien | William | 356 | ||
| O'Brien | Wm. | 356 | ||
| O'Bryan | Christopher | 356 | ||
| O'Bryan | Christopher | Esq. | 356 | |
| O'Bryan | Donoughe | Esq. | 356 | |
| O'Bryan | Henry | 356 | ||
| O'Bryan | John | 356 | ||
| O'Bryan | Teresa | 356 | ||
| O'Bryan | Timothy | 356 | ||
| O'Bryan | Timothy | Esq. | 356 | |
| O'Bryan | William | 356 | ||
| O'Bryen | Danl. | 356 | ||
| O'Bryen | Helena | 356 | ||
| O'Bryen | John | Esq. | 356 | |
| O'Bryen | Terrelagh | Sir | 356 | |
| O'Bryen | Wm. | 356 | ||
| O'Bryne | John | 356 | ||
| O'Bryon | Gertrude | Widow | 356 | |
| O'Callaghan | Mary | Widow | 11 | |
| O'Callaghan | Alicia | Widow | 356 | |
| O'Callaghan | Callaghan | 356 | ||
| O'Callaghan | Catherine | Widow | 356 | |
| O'Callaghan | Choghor | 356 | ||
| O'Callaghan | Cornelius | 356 | ||
| O'Callaghan | Cornelius | Esq. | 356 | |
| O'Callaghan | Daniel | Esq. | 356 | |
| O'Callaghan | Donogh | 356 | ||
| O'Callaghan | Mary | 356 | ||
| O'Callaghan | Owen | Esq. | 356 | |
| O'Callaghan | Robert | Esq. | 356 | |
| O'Callaghan | Roger | 356 | ||
| O'Callaghan | Timothy | Esq. | 356 | |
| O'Callaghane | Cahir | 356 | ||
| O'Callagher | Felix | Alderman | 356 | |
| O'Carroll | Thady | 356 | ||
| O'Coner | Denis | Esq. | 356 | |
| O'Connell | Charles | 356 | ||
| O'Connell | Connell | M. D. | 356 | |
| O'Connell | Cormocke | 356 | ||
| O'Connell | Daniel | 356 | ||
| O'Connell | Maurice | 356 | ||
| O'Connell | Owen | 356 | ||
| O'Connell | Thomas | M. D. | 356 | |
| O'Conner | Dennis | Esq. | 357 | |
| O'Connor | Denis | Esq. | 356 | |
| O'Connor | Andrew | 357 | ||
| O'Connor | Bridget | Widow | 357 | |
| O'Connor | Catherine | 357 | ||
| O'Connor | Charles | 357 | ||
| O'Connor | Dominick | 357 | ||
| O'Connor | Dominick | Esq. | 357 | |
| O'Connor | Don | 357 | ||
| O'Connor | Donogh | Sir | 357 | |
| O'Connor | Dorothea | Widow | 357 | |
| O'Connor | Edmond | M. D. | 357 | |
| O'Connor | Frances | 357 | ||
| O'Connor | George | Esq. | 357 | |
| O'Connor | John | Rev. | 357 | |
| O'Connor | John | 357 | ||
| O'Connor | John | Esq. | 357 | |
| O'Connor | Lysagh | Esq. | 357 | |
| O'Connor | Margaret | Widow | 357 | |
| O'Connor | Mary | Widow | 357 | |
| O'Connor | Patrick | 357 | ||
| O'Connor | Roger | 357 | ||
| O'Connor | Thomas | Esq. | 357 | |
| O'Connor | Wm. | 357 | ||
| O'Corcrane | Teigh M'Shane | 357 | ||
| O'Dea | Henry | 357 | ||
| O'Dea | Thady | 357 | ||
| Odell | Christopher | Lieutenant | 357 | |
| Odell | John | 357 | ||
| Odell | John | Esq. | 357 | |
| Odell | Thomas | Esq. | 357 | |
| Odle | Ellinor | Widow | 357 | |
| Odle | Fitzmaurice O. | Esq. | 357 | |
| Odle | John | Esq. | 357 | |
| Odlum | Edward | 357 | ||
| Odlum | Edwd. | 357 | ||
| Odlum | Ellinor | 357 | ||
| Odlum | Henry | 357 | ||
| Odlum | Henry | Esq. | 357 | |
| Odlum | Richard | 357 | ||
| Odlum | Thomas | 357 | ||
| Odlum | William | 357 | ||
| O'Doherty | Henry | Rev. | 357 | |
| O'Doherty | Michael | 358 | ||
| O'Donilane | Donnille | 357 | ||
| O'Donill | Marcus | 357 | ||
| O'Donnell | Alice | Widow | 357 | |
| O'Donnell | Ann | Widow | 357 | |
| O'Donnell | Charles | Esq. | 357 | |
| O'Donnell | Con | 357 | ||
| O'Donnell | Connell | 357 | ||
| O'Donnell | Dominick | Rev. | 357 | |
| O'Donnell | Ensign John | 357 | ||
| O'Donnell | Hugh | Esq. | 357 | |
| O'Donnell | James Moore | Esq. | 357 | |
| O'Donnell | John | 357 | ||
| O'Donnell | Manus | Esq. | 357 | |
| O'Donnell | Marcus | Esq. | 357 | |
| O'Donnell | Richard | Esq. | 357 | |
| O'Donnell | Simon | 357 | ||
| O'Donnell | Terence | 357 | ||
| O'Donnell | William | 357 | ||
| O'Donnoghue | Geffry | 358 | ||
| O'Donoghue | Daniel | Esq. | 358 | |
| O'Donoghue | Jeffrey | Esq. | 358 | |
| O'Donoghue | Patrick | 358 | ||
| O'Donoghue | Robert | 358 | ||
| O'Donovane | Daniel | 358 | ||
| O'Dougherty | Henry | Rev. | 357 | |
| O'Dougherty | Michael | 358 | ||
| O'Dowd | James | 358 | ||
| O'Dowda | Letitia | Widow | 358 | |
| O'Doweley | William M'Donoghe | 358 | ||
| O'Driscoll | Teresa | 358 | ||
| O'Duloghry | John | 358 | ||
| O'Dwyer | Morogh M'Conagher | 358 | ||
| O'Dwyere | Darby | Esq. | 358 | |
| O'Dwyre | Gillane Neaff | 358 | ||
| O'Fallon | Redmond | 358 | ||
| O'Farrall | Cornelius | 358 | ||
| O'Farrell | Gerald | Esq. | 358 | |
| O'Farrell | Jane | Widow | 358 | |
| O'Farrell | Major General Francis Fergus | Esq. | 358 | |
| O'Farrell | Major General Richard | 358 | ||
| O'Farrell | Michael | 358 | ||
| O'Farrell | Roger | 358 | ||
| O'Farrell | Theobold | 358 | ||
| O'Ferrall | Anne | 358 | ||
| O'Ferrall | John | Esq. | 358 | |
| O'Fferreshe | Dowagh M'Edmond M'Donnell Duffe | 358 | ||
| Offey | John | Esq. | 358 | |
| Offlaherty | Catherine | 358 | ||
| O'Flaerty | Morough Ne Doe | Sir | 358 | |
| O'Flaherty | Edmond | 358 | ||
| O'Flaherty | John | 358 | ||
| O'Flaherty | Thomas | Esq. | 358 | |
| O'Flangan | Jos. | 358 | ||
| O'Flinn | John | 358 | ||
| O'Flyn | Dorothy | Widow | 358 | |
| O'Flynn | Edmond | Esq. | 358 | |
| O'Fullny | Edmond | 358 | ||
| O'Gara | Farrell | 358 | ||
| O'Garra | Mary | Widow | 358 | |
| O'Garra | Oliver O'G. | Esq. | 358 | |
| O'Gary | Manus | 358 | ||
| Ogden | Isaac | 358 | ||
| Ogden | John | 358 | ||
| Ogilby | Alexander | 358 | ||
| Ogilby | Mary | 358 | ||
| Ogle | Ann | 358 | ||
| Ogle | Elizabeth | Widow | 358 | |
| Ogle | Frances | Widow | 358 | |
| Ogle | George | 358 | ||
| Ogle | Henry | 358 | ||
| Ogle | James | 358 | ||
| Ogle | John | 358 | ||
| Ogle | John | Esq. | 358 | |
| Ogle | Luke | 358 | ||
| Ogle | Mary | Widow | 358 | |
| Ogle | Robert | Esq. | 358 | |
| Ogle | Samuel | Esq. | 358 | |
| Ogle | Susanna | Widow | 358 | |
| Ogle | Thomas | 358 | ||
| Ogle | William | Alderman | 358 | |
| Ogle | William | Rev. | 358 | |
| Ogle | William M. | Esq. | 359 | |
| Oglethorpe | Widower William | 359 | ||
| O'Grady | Darby | Esq. | 359 | |
| O'Grady | John | 359 | ||
| O'Grady | Joseph Patrick | 359 | ||
| O'Hagan | Arthur | Esq. | 359 | |
| O'Halloran | Joseph | 359 | ||
| O'Halloran | Sylvester | Esq. | 359 | |
| O'Halloran | Thady | Esq. | 359 | |
| O'Hallorane | Charles | 359 | ||
| O'Hanlon | Hugh | 359 | ||
| O'Hanlon | John | 359 | ||
| O'Hara | Adam | Esq. | 359 | |
| O'Hara | Anne | Widow | 359 | |
| O'Hara | Arthur | 359 | ||
| O'Hara | Barnett | 359 | ||
| O'Hara | Charles | 359 | ||
| O'Hara | Charles | Esq. | 359 | |
| O'Hara | Cormick | 359 | ||
| O'Hara | Ellinor | Widow | 359 | |
| O'Hara | Francis | 359 | ||
| O'Hara | Henry | 359 | ||
| O'Hara | Henry | Esq. | 359 | |
| O'Hara | Henry Hutchinson | Esq. | 359 | |
| O'Hara | Hugh | 359 | ||
| O'Hara | Jeffrey | Esq. | 359 | |
| O'Hara | John | 359 | ||
| O'Hara | Kane | Esq. | 359 | |
| O'Hara | Laurence | 359 | ||
| O'Hara | Mary | Hon. | 359 | |
| O'Hara | Tobias | 359 | ||
| O'Hara | William | 359 | ||
| O'Hare | Daniel | 359 | ||
| O'Hare | Danl. | 359 | ||
| O'Hare | Henry | 359 | ||
| O'Hare | Philip | 359 | ||
| O'Hayer | Donoght | 359 | ||
| O'Hea | James | 359 | ||
| O'Heyden | Donnoghe | 359 | ||
| O'Hirlihy | Timothy | 359 | ||
| Ohman | Mary | 359 | ||
| O'Hose | Shane | 359 | ||
| O'Kearny | Francis | Esq. | 359 | |
| O'Keefe | Anne | Widow | 359 | |
| O'Keefe | Arthur | 359 | ||
| O'Keefe | Chas. | Esq. | 359 | |
| O'Keefe | Cornelius | 359 | ||
| O'Keefe | Dennis | Esq. | 359 | |
| O'Keefe | Doctor Cornelius | 359 | ||
| O'Keefe | Manus | 359 | ||
| O'Kelly | Elizabeth | 359 | ||
| O'Kelly | Geo. | Sir | 359 | |
| O'Kelly | George | Sir | 359 | |
| O'Kelly | Mary | 359 | ||
| O'Kelly | Mulmore | 359 | ||
| O'Kennedy | James | 359 | ||
| O'Kerewan | Donogh | 69 | ||
| O'Lalor | Teigh M'Mortagh Oge | 359 | ||
| Oldfield | Edward | 359 | ||
| Oldham | Thomas | 359 | ||
| Oldinge | Catherine | Widow | 359 | |
| Oldinge | James O. | 359 | ||
| Oldman | Patrick | 359 | ||
| O'Leary | Bridget | Widow | 359 | |
| O'Leary | Florence | 359 | ||
| O'Lenaghan | Connor | 359 | ||
| O'Leyne | Dennis | 359 | ||
| Olford | Thomas | 359 | ||
| Oliver | Andrew | 359 | ||
| Oliver | Christopher | 359 | ||
| Oliver | John | Rev. | 359 | |
| Oliver | John | 359 | ||
| Oliver | Oliver | Hon. | 359 | |
| Oliver | Robert | Esq. | 359 | |
| Oliver | Stephen | 359 | ||
| Oliver | Susanna | Widow | 359 | |
| Oliver | Thomas | Esq. | 359 | |
| Oliver | Widower Valentine | 360 | ||
| Ollaghan | James | 360 | ||
| O'Loughlen | Coleman | 360 | ||
| Olphert | John | 360 | ||
| Olpherts | Richard | Esq. | 360 | |
| Olpherts | Wibrant | 360 | ||
| Olpherts | Wybrants | Esq. | 360 | |
| Olyff | John | Rev. | 360 | |
| O'Macken | Murtough | 360 | ||
| O'Maley | Martin | 360 | ||
| O'Malley | James | 360 | ||
| O'Malley | Patrick | 360 | ||
| O'Mara | John | 360 | ||
| O'Meally | John | 360 | ||
| O'Mealy | James | 360 | ||
| O'Meara | Cornelius | 360 | ||
| O'Meara | John | 360 | ||
| O'Meara | Morgan | Esq. | 360 | |
| O'Meara | Stephen | 360 | ||
| O'Meara | Thos. | Esq. | 360 | |
| O'Meigher | Teigh Geankagh | 360 | ||
| O'Molloy | Hugh | 360 | ||
| O'Moore | James | 323 | ||
| O'Morrane | John | 360 | ||
| O'Mullane | Andrew | 360 | ||
| O'Mullane | John | 360 | ||
| O'Neale | Thomas | 360 | ||
| O'Neill | Ambrose | Esq. | 360 | |
| O'Neill | Anne | Widow | 360 | |
| O'Neill | Arthur | Rev. | 360 | |
| O'Neill | Arthur | 360 | ||
| O'Neill | Bernard | Esq. | 360 | |
| O'Neill |