| Caddigan | Bryan | Curraghmulmurry |
| Caddigan | Martin | Curraghmulmurry |
| Caddigan | Patrick | Curraghmulmurry |
| Caddigan jun | Lacky | Curraghmulmurry |
| Caddigan sen | Lacky | Curraghmulmurry |
| Campbell | John | Clooncunny |
| Campbell | Joseph | Ballincurry |
| Carr | Simon | Derryhippoo |
| Carr | Thomas | Derryhippoo |
| Carr | Thomas | Lisduff |
| Carroll | Francis | Gortnadeeve West |
| Carroll | Patrick | Gorteenfadda |
| Carroll | Thomas | Gorteenfadda |
| Carroll | William | Gorteenfadda |
| Caulfield | St George | Dunamon |
| Caulfield | St. George | Bracklin |
| Caulfield | St. George | Carrowkeel |
| Caulfield | St. George | Coolroghan |
| Caulfield | St. George | Cornaveagh |
| Cheevers | Christopher | Lisnageeragh |
| Cheevers | John | Balling |
| Cheevers | John | Curraghmulmurry |
| Cheevers | John | Kilcolumb |
| Cheevers | John | Oughtagh (Galway) |
| Cheevers | John | Toberroe East |
| Clarke | Augustine | Fairfield |
| Clarke | Augustus | Funshin |
| Clarke | John | Keeloges West |
| Clarke | Patrick | Fairfield |
| Clarke | Patrick | Funshin |
| Clarke | Patrick | Rosdaul |
| Clarke | Peter | Rosdaul |
| Coleman | Thomas | Moneenroe |
| Collins | Augustus | Knockmascahill |
| Collins | Bryan | Knockmascahill |
| Collins | Edward | Faartan |
| Collins | James | Knockmascahill |
| Collins | John | Clooncullaun |
| Collins | Mary | Knockmascahill |
| Collins | Michael | Knockmascahill |
| Commons | John | Faartan |
| Commons | Thomas | Faartan |
| Conboy | Patrick | Ballincurry |
| Concannon | Jer. | Gortnadeeve East |
| Conicar | James | Leaha |
| Connealy | Michael | Derryhippoo |
| Conneeley | Peter | Aghalateeve |
| Conneely | Honoria | Glinsk |
| Conneely | John | Ballynakill |
| Conneely | John | Toberroe West |
| Conneely | John | Treanpark |
| Conneely | Patrick | Kilmacrickard |
| Conneely | Thomas | Glinsk |
| Conneely | Thos. & Ml. | Kilmacrickard |
| Conneely | William | Ballincurry |
| Conneely | William | Glinsk |
| Connell | John | Ballincurry |
| Connell | John | Derryhippoo |
| Connell | Martin | Clooncullaun |
| Conner | Michael | Lenarevagh |
| Conneran | Patrick | Gorteenfadda |
| Conneran | William | Gorteenfadda |
| Connicar | Andrew | Funshin |
| Connicar | John | Funshin |
| Connicar | Patrick | Funshin |
| Connolly | James | Derryhippoo |
| Connolly | Patrick | Derryhippoo |
| Connor | Malachy & Ml. | Moat |
| Connor | Michael | Ballynahowna |
| Connor | Michael | Keeloges East |
| Connoran | Patrick | Lahaghglass South |
| Connors | Julia | Ballincurry |
| Conry | Martin | Rosmoyland |
| Conry | Martin | Shanballyeden |
| Conry (of Rosmoyland) | Martin | Kilbegnet |
| Conway | Michael | Derryhippoo |
| Conway | Patrick | Clooncah |
| Conway | Patrick | Clooncullaun |
| Conway | Patrick | Leaha |
| Cooney | Andrew | Kilmacrickard |
| Cooney | Catherine | Sonnagh |
| Cooney | James | Glinsk |
| Cooney | Patrick | Kilcolumb |
| Cooney | Thomas | Sonnagh |
| Corbett | Denis | Park |
| Corbett | John | Park |
| Corbett | Luke | Moat |
| Corbett | Michael | Gortnalavey |
| Corbett | Thos &Jas | Moat |
| Corium | Martin | Keeloges East |
| Corium | Michael | Keeloges East |
| Corium | Thomas | Keeloges East |
| Corr | Richard | Rabbitpark |
| Corr | Thomas | Curraghrevagh |
| Costello | Edmund | Funshin |
| Costello | Martin | Ussey |
| Costello | Michael | Balling |
| Costello | Michael | Funshin |
| Costelloe | Bryan | Leaha |
| Costelloe | Edmund | Leaha |
| Costelloe | John | Leaha |
| Costelloe (Tom) | John | Leaha |
| Costelloe | Michael | Creggs |
| Costelloe | Michael | Leaha |
| Costelloe | Thomas | Leaha |
| Costelloe (Pat) | Thomas | Leaha |
| Costelloe (Thos) | Patrick | Leaha |
| Costelloe jun | Thomas | Leaha |
| Cotton | William | Ballynakill |
| Coughlin | Bridget | Carrowkeel |
| Coughlin | Martin | Carrowkeel |
| Courtney | Ellen | Corlackan |
| Coyle | Winifred | Ardagh |
| Coyne | John | Aghalateeve |
| Coyne | John | Keeloges East |
| Coyne | John | Kilbegnet |
| Coyne | John | Lenarevagh |
| Coyne | Martin | Keeloges East |
| Coyne | Martin | Millford |
| Coyne | Michael | Aghalateeve |
| Coyne | Michael | Keeloges East |
| Coyne | Peter | Aghalateeve |
| Coyne | Thomas | Curraghrevagh |
| Craun | Patrick | Clooncullaun |
| Creane | Dominick | Ballincurry |
| Creane | John | Derryhippoo |
| Creane | Patrick | Ballincurry |
| Croghan | Thomas | Fairfield |
| Croghan | Thomas | Lisduff |
| Crohan | Margaret | Ardagh |
| Crohan | Michael | Balling |
| Crohan | Owen | Moat |
| Crohan | Thomas | Moat |
| Crowe | Elizabeth | Kilmacrickard |
| Crowe | Martin & Patk. | Moat |
| Cuddihy | Michael | Sonnagh |
| Cuddy | Denis | Moat |
| Cuddy | Jane | Funshin |
| Cuddy | Luke | Boleythomas |
| Cuddy | Martin | Moat |
| Cuddy | Michael | Funshin |
| Cuddy | Michael | Rosmoyland |
| Cuddy | Owen | Ardagh |
| Cuddy | Patrick | Moat |
| Cuddy | Patrick | Newtown |
| Cuddy (of Shanballyeden) | Michael | Kilbegnet |
| Cunboy | Patrick | Ballincurry |
| Cunca | Thomas | Gortnadeeve West |
| Cunniffe | Andrew | Toberroe West |
| Cunniffe | Daniel | Moat |
| Cunniffe | Honoria | Ballincurry |
| Cunniffe | Hugh | Ballincurry |
| Cunniffe | James | Knockmascahill |
| Cunniffe | John | Ardagh |
| Cunniffe | John | Toberroe West |
| Cunniffe | Owen | Kilmacrickard |
| Cunniffe | Patrick | Lahaghglass South |
| Cunniffe | Thomas | Moat |
| Cunningham | Bryan | Moat |
| Cunningham | Laurence | Rosdaul |
| Cunningham | Luke | Rosdaul |
| Cunningham | Michl. | Moat |
| Curboy | Jeremiah | Ballincurry |
| Curboy | Michael | Cloonfaghna |
| Curboy | Michael | Glinsk |
| Curboy | Patrich | Glinsk |
| Curboy | Patrick | Cloonfaghna |
| Curboy | Patrick | Ussey |
| Curley | Denis | Kilmacrickard |
| Curley | John | Carrowkeel |
| Curley | John | Carrownaglogh |
| Curley | John | Cornaveagh |
| Curley | John | Dunamon |
| Curley | John | Leaha |
| Curley | John | Sonnagh |
| Curley | Martin | Carrowkeel |
| Curley | Martin | Cornaveagh |
| Curley | Matthew | Ardagh |
| Curley | Patrick | Carrowkeel |
| Curley | Patrick | Carrownaglogh |
| Curley | Patrick | Clooncunny |
| Curley | Patrick | Cornaveagh |
| Curley | Peter | Garraun South |
| Curley | Thomas | Lenanmarla |
| Curley | Thomas | Oughtagh (Galway) |
| Curley | William | Ballynahowna |
| Curraun | Francis | Gortnadeeve West |
| Curraun | William | Gortnadeeve West |