| Tithe Books (1827-31) | Religious Census (1834) | Griffith's Valuation (1851-2) | |||
| Cornelius Crehan (1834) | Great Blasket Island, Dunquin | ||||
| Daniel Crohan (1828) | Coumeenoole North, Dunquin | Daniel Crehan (1834) | Coumeenoole, Dunquin | ||
| Daniel Crohan (1851) | Great Blasket Island, Dunquin | ||||
| Darby McCrohan (1827) | Ballybrack, Kilquane | Jermiah Crihan (1834) | Ballybrack, Kilquane | ||
| Darby McCrohan (1827) | Ballybrack, Kilquane | ||||
| Darby McCrohan (1827) | Ballybrack, Kilquane | ||||
| Ellen Crohan (1851) | Ballyickeen, Dunquin | ||||
| Ellen Crohan (1851) | Ballynahow, Dunquin | ||||
| Eugene Crohan (1828) | Ballyickeen, Dunquin | Eugene Crehan (1834) | Ballyickeen, Dunquin | ||
| James McCrohan (1827) | Ballybrack, Kilquane | James Crihan (1834) | Ballybrack, Kilquane | James McCrohan (1852) | Ballybrack, Kilquane |
| James McCrohan (1827) | Ballybrack, Kilquane | James Crihan Jno (1834) | Ballybrack, Kilquane | ||
| John Crehan (1834) | Ballyickeen, Dunquin | ||||
| John Crohane (1851) | Coumeenoole North, Dunquin | ||||
| John Crohan (1851) | Coumeenoole North, Dunquin | ||||
| John Crihan (1834) | Maumanorig, Marhin | ||||
| John Crihan (1834) | Ballybrack, Kilquane | John McCrohan (Darby) (1852) | Ballybrack, Kilquane | ||
| John McCrohan (1852) | Ballybrack, Kilquane | ||||
| Michl Crihan (1834) | Ballybrack, Kilquane | ||||
| Patt Crihen (1834) | Kilmalkedar (Keel), Kilmalkedar | Patrick McCrohan (1852) | Kilmalkedar, Kilmalkedar | ||
| Thomas Crohan (1828) | Ballyickeen, Dunquin | Thos. Crehan (1834) | Ballyickeen, Dunquin | Thomas Crohan (1851) | Ballyickeen, Dunquin |
| Thomas Crohan (1851) | Ballyickeen, Dunquin | ||||
| Thomas Crohan (1851) | Ballyickeen, Dunquin | ||||
| Timothy Crohan (1828) | Ballyickeen, Dunquin | Timothy Crehan (1834) | Ballyickeen, Dunquin | Timothy Crohan (1851) | Ballyickeen, Dunquin |
| Timothy Crohan (1851) | Ballyickeen, Dunquin | ||||
| Timothy Crohan (1851) | Ballyickeen, Dunquin | ||||
| Timothy Crohan (1851) | Coumeenoole North, Dunquin | ||||
| Tim Crihan (1834) | Ballybrack, Kilquane | ||||