| TRANSCRIPTION OF 1851 CENSUS FOR FOUR PARISHES OF COUNTY CORK IRELAND | ||||||||
| Number | Surname | Forename | Age | Relation | Occupation | Notes | Townland | Parish |
| 515 | O'Donnell | John | 32 | head | farmer | Ballylackan | Leitrim | |
| 515 | O'Donnell | Mary | 32 | wife | Ballylackan | Leitrim | ||
| 515 | O'Donnell | John | 8 | son | Ballylackan | Leitrim | ||
| 515 | O'Donnell | Edmond | 7 | son | Ballylackan | Leitrim | ||
| 515 | O'Donnell | Patrick | 5 | son | Ballylackan | Leitrim | ||
| 515 | O'Donnell | Owen | 4 | son | Ballylackan | Leitrim | ||
| 515 | Clancy | William | 22 | serv | lab | Ballylackan | Leitrim | |
| 515 | Clancy | Thomas | 24 | serv | lab | Ballylackan | Leitrim | |
| 515 | Byrnes | Patrick | 13 | serv | lab | Ballylackan | Leitrim | |
| 515 | Flynn | Ellen | 21 | serv | Ballylackan | Leitrim | ||
| 515 | Clancy | Mary | 20 | serv | Ballylackan | Leitrim | ||
| 516 | Daly | Denis | 80 | head | lab | Ballylackan | Leitrim | |
| 516 | Daly | Mary | 38 | dau | Ballylackan | Leitrim | ||
| 516 | Daly | Margaret | 36 | dau | Ballylackan | Leitrim | ||
| 517 | Joyce | Carey | 59 | head | farmer | Ballylackan | Leitrim | |
| 517 | Joyce | Bridget | 50 | wife | Ballylackan | Leitrim | ||
| 517 | Joyce | Sarah | 28 | dau | Ballylackan | Leitrim | ||
| 517 | Joyce | Bridget | 22 | dau | Ballylackan | Leitrim | ||
| 517 | Joyce | Kate | 18 | dau | Ballylackan | Leitrim | ||
| 517 | Joyce | Ellen | 16 | dau | Ballylackan | Leitrim | ||
| 517 | Joyce | Carey | 9 | son | Ballylackan | Leitrim | ||
| 517 | Quirk | Mary | 19 | serv | Ballylackan | Leitrim | ||
| 517 | Parker | Eliza | 35 | serv | Ballylackan | Leitrim | ||
| 517 | Caine | Michael | 15 | serv | Ballylackan | Leitrim | ||
| 517 | Sullivan | Mary | 40 | serv | Ballylackan | Leitrim | ||
| 517 | Miller | James | 20 | serv | lab | Ballylackan | Leitrim | |
| 517 | Wall | Patrick | 23 | serv | lab | Ballylackan | Leitrim | |
| 517 | Joyce | Michael | 21 | serv | Ballylackan | Leitrim | ||
| 517 | Lenehan | Patrick | 50 | serv | lab | Ballylackan | Leitrim | |
| 518 | Keleher | Michael | 47 | head | farmer | Ballylackan | Leitrim | |
| 518 | Keleher | Johanna | 35 | wife | Ballylackan | Leitrim | ||
| 518 | Keleher | Timothy | 12 | son | Ballylackan | Leitrim | ||
| 518 | Keleher | Eliza | 10 | dau | Ballylackan | Leitrim | ||
| 518 | Keleher | Michael | 8 | son | Ballylackan | Leitrim | ||
| 518 | Keleher | Mary | 7 | dau | Ballylackan | Leitrim | ||
| 518 | Keleher | John | 5 | son | Ballylackan | Leitrim | ||
| 518 | Sheehan | Daniel | 27 | serv | Ballylackan | Leitrim | ||
| 518 | Burke | Margaret | 28 | serv | Ballylackan | Leitrim | ||
| 519 | Browne | Catherine | 60 | head | farmer | widow | Ballylackan | Leitrim |
| 519 | Browne | Edmond | 30 | son | farmer | Ballylackan | Leitrim | |
| 519 | Browne | Margaret | 24 | dau | Ballylackan | Leitrim | ||
| 519 | Browne | Mary | 22 | dau | Ballylackan | Leitrim | ||
| 519 | Browne | Ellen | 22 | dau | Ballylackan | Leitrim | ||
| 519 | Browne | Patrick | 17 | son | Ballylackan | Leitrim | ||
| 519 | Browne | Bridget | 14 | dau | Ballylackan | Leitrim | ||
| 519 | Browne | James | 11 | son | Ballylackan | Leitrim | ||
| 519 | Coughlan | Timothy | 28 | serv | Ballylackan | Leitrim | ||
| 519 | O'Brien | Thomas | 30 | serv | Ballylackan | Leitrim | ||
| 519 | Cahill | John | 60 | brother | Ballylackan | Leitrim | ||
| 520 | Flynn | Thomas | 40 | head | lab | Ballylackan | Leitrim | |
| 520 | Flynn | Johanna | 37 | wife | Ballylackan | Leitrim | ||
| 520 | Flynn | Ellen | 15 | dau | Ballylackan | Leitrim | ||
| 520 | Flynn | Mary | 13 | dau | Ballylackan | Leitrim | ||
| 520 | Flynn | Catherine | 11 | dau | Ballylackan | Leitrim | ||
| 520 | Flynn | Ann | 9 | dau | Ballylackan | Leitrim | ||
| 520 | Flynn | James | 7 | son | Ballylackan | Leitrim | ||
| 520 | Flynn | Thomas | 5 | son | Ballylackan | Leitrim | ||
| 520 | Flynn | John | 3 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | James | 72 | head | farmer | Ballylackan | Leitrim | |
| 521 | Joyce | Catherine | 67 | wife | Ballylackan | Leitrim | ||
| 521 | Joyce | Edmond | 36 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | Mary | 30 | dau | Ballylackan | Leitrim | ||
| 521 | Joyce | James | 13 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | John | 11 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | Michael | 9 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | Catherine | 8 | dau | Ballylackan | Leitrim | ||
| 521 | Joyce | Mary | 6 | dau | Ballylackan | Leitrim | ||
| 521 | Joyce | Edmond | 2 | son | Ballylackan | Leitrim | ||
| 521 | Joyce | Julia | 2 | gr/d | Ballylackan | Leitrim | ||
| 521 | O'Brien | Michael | 20 | serv | Ballylackan | Leitrim | ||
| 521 | Harris | Catherine | 16 | serv | Ballylackan | Leitrim | ||
| 521 | Burke | Johanna | 67 | visi | Ballylackan | Leitrim | ||
| 522 | Ahern | David | 60 | head | farmer | Ballylackan | Leitrim | |
| 522 | Ahern | Johanna | 55 | wife | Ballylackan | Leitrim | ||
| 522 | Ahern | John | 22 | son | Ballylackan | Leitrim | ||
| 522 | Ahern | Thomas | 20 | son | Ballylackan | Leitrim | ||
| 522 | Ahern | Patrick | 16 | son | Ballylackan | Leitrim | ||
| 522 | Ahern | Patrick | 67 | brother | Ballylackan | Leitrim | ||
| 522 | Walsh | James | 27 | serv | lab | Ballylackan | Leitrim | |
| 522 | Roche | Jane | 21 | serv | Ballylackan | Leitrim | ||
| 522 | Sullivan | John | 13 | serv | Ballylackan | Leitrim | ||
| 523 | Hennesy | Mary | 40 | wife | dressmaker | Husband in America | Ballylackan | Leitrim |
| 523 | Hennesy | William | 13 | son | Ballylackan | Leitrim | ||
| 523 | Hennesy | Ellen | 9 | dau | Ballylackan | Leitrim | ||
| 523 | Hennesy | Allice | 7 | dau | Ballylackan | Leitrim | ||
| 523 | Hennesy | Robert | 4 | son | Ballylackan | Leitrim | ||
| 524 | Heafy | Thomas | 30 | head | shoemaker | Ballylackan | Leitrim | |
| 524 | Heafy | Julia | 34 | wife | age 24? | Ballylackan | Leitrim | |
| 524 | Heafy | Hannah | 25 | sister | Ballylackan | Leitrim | ||
| 525 | Driscoll | Patrick | 32 | head | farmer | Ballylackan | Leitrim | |
| 525 | Driscoll | Ellen | 35 | wife | Ballylackan | Leitrim | ||
| 525 | Driscoll | David | 7 | son | Ballylackan | Leitrim | ||
| 525 | Driscoll | Mary | 4 | dau | Ballylackan | Leitrim | ||
| 525 | Byrnes | William | 15 | serv | Ballylackan | Leitrim | ||
| 526 | Slattery | Johanna | 65 | head | widow | Ballylackan | Leitrim | |
| 526 | Slattery | Mary | 32 | sister | Ballylackan | Leitrim | ||
| 526 | Slattery | Johanna | 11 | sister | Ballylackan | Leitrim | ||
| 527 | Greehy | Patrick | 47 | head | farmer | Ballylackan | Leitrim | |
| 527 | Greehy | Julia | 30 | wife | Ballylackan | Leitrim | ||
| 527 | Greehy | Patrick | 10 | son | Ballylackan | Leitrim | ||
| 527 | Greehy | Catherine | 8 | dau | Ballylackan | Leitrim | ||
| 527 | Greehy | John | 18m | son | Ballylackan | Leitrim | ||
| 527 | Blake | Maurice | 15 | relation | Ballylackan | Leitrim | ||
| 528 | Byrnes | Garrett | 29 | head | lab | Ballylackan | Leitrim | |
| 528 | Byrnes | Margaret | 25 | wife | Ballylackan | Leitrim | ||
| 528 | Byrnes | Ellen | 2 | dau | Ballylackan | Leitrim | ||
| 528 | Byrnes | Bridget | 60 | mother | Ballylackan | Leitrim | ||
| 529 | Coffee | Thomas | 52 | head | farmer | Ballylackan | Leitrim | |
| 529 | Coffee | Ellen | 70 | wife | age ? | Ballylackan | Leitrim | |
| 529 | Coffee | John | 20 | son | Ballylackan | Leitrim | ||
| 529 | Coffee | Elizabeth | 19 | dau | Ballylackan | Leitrim | ||
| 529 | Coffee | Catherine | 16 | dau | Ballylackan | Leitrim | ||
| 529 | Coffee | Mary | 14 | dau | Ballylackan | Leitrim | ||
| 529 | Coffee | Jeremiah | 10 | son | Ballylackan | Leitrim | ||
| 529 | Slattery | John | 33 | relation | Ballylackan | Leitrim | ||
| 530 | O'Brien | William | 41 | head | lab | Ballylackan | Leitrim | |
| 530 | O'Brien | Elizabeth | 38 | wife | Ballylackan | Leitrim | ||
| 530 | O'Brien | Margaret | 9 | dau | Ballylackan | Leitrim | ||
| 530 | O'Brien | Hannah | 8 | dau | Ballylackan | Leitrim | ||
| 530 | O'Brien | Elizabeth | 6m | dau | (2 years 6 months unclear) | Ballylackan | Leitrim | |
| 531 | Miller | Thomas | 50 | head | lab | Ballylackan | Leitrim | |
| 531 | Miller | Margaret | 45 | wife | Ballylackan | Leitrim | ||
| 531 | Miller | Richard | 25 | son | lab | Ballylackan | Leitrim | |
| 531 | Miller | Denis | 23 | son | carpenter | Ballylackan | Leitrim | |
| 531 | Miller | Margaret | 12 | dau | Ballylackan | Leitrim | ||
| 531 | Miller | Elizabeth | 5 | dau | Ballylackan | Leitrim | ||
| 532 | McCarthy | Michael | 45 | head | lab | Ballylackan | Leitrim | |
| 532 | McCarthy | Ellen | 45 | wife | Ballylackan | Leitrim | ||
| 532 | McCarthy | John | 16 | son | Ballylackan | Leitrim | ||
| 532 | McCarthy | Michael | 14 | son | Ballylackan | Leitrim | ||
| 532 | McCarthy | Jeremiah | 9 | son | Ballylackan | Leitrim | ||
| 532 | McCarthy | Ellen | 6 | dau | Ballylackan | Leitrim | ||
| 532 | McCarthy | Bridget | 5 | dau | Ballylackan | Leitrim | ||
| 532 | McCarthy | James | 9m | son | age illegible | Ballylackan | Leitrim | |
| 533 | Sullivan | William | 40 | head | lab | Ballylackan | Leitrim | |
| 533 | Sullivan | Alice | 43 | wife | Ballylackan | Leitrim | ||
| 533 | Sullivan | Ellen | 13 | dau | Ballylackan | Leitrim | ||
| 533 | Sullivan | William | 9 | son | Ballylackan | Leitrim | ||
| 534 | Flynn | Ellen | 80 | head | widow | Ballylackan | Leitrim | |
| 534 | Flynn | Catherine | 40 | dau | Ballylackan | Leitrim | ||
| 534 | Flynn | Maurice | 25 | son | Ballylackan | Leitrim | ||
| 535 | Flynn | Timothy | 31 | head | lab | Ballylackan | Leitrim | |
| 535 | Flynn | Ellen | 9 | dau | Ballylackan | Leitrim | ||
| 535 | Flynn | Margaret | 3 | dau | Ballylackan | Leitrim | ||
| 536 | Burke | Ann | 55 | head | widow | Ballylackan | Leitrim | |
| 536 | Burke | Mary | 22 | dau | Ballylackan | Leitrim | ||
| 536 | Begly | Timothy | 1w | gr/s | Ballylackan | Leitrim | ||
| 537 | Healy | John | 52 | head | farmer | Ballylackan | Leitrim | |
| 537 | Healy | Ellen | 52 | wife | Ballylackan | Leitrim | ||
| 537 | Healy | Catherine | 23 | dau | Ballylackan | Leitrim | ||
| 537 | Healy | Johanna | 19 | dau | Ballylackan | Leitrim | ||
| 537 | Healy | John | 16 | son | Ballylackan | Leitrim | ||
| 537 | Healy | Ellen | 15 | dau | Ballylackan | Leitrim | ||
| 537 | Healy | Mary | 8 | dau | Ballylackan | Leitrim | ||
| 538 | McCraith | Mary | 40 | head | widow | Ballylackan | Leitrim | |
| 538 | Myles | Patrick | 15 | son | surname ckd | Ballylackan | Leitrim | |