“The Composition Act (1823) specified that tithes due to the Established Church, the Church of Ireland, which had hitherto been payable in kind, should now be paid in money. As a result, it was necessary to carry out a valuation of the entire country, civil parish by civil parish, to determine how much would be payable by each landholder.” – National Archives of Ireland
| Surname | Forename | Townland/Street | Parish | County | Year |
| Callan | Patrick | Cappocksgreen | Ardee | Louth | 1830 |
| Callan | Patk | Parks | Ardee | Louth | 1830 |
| Callan | Brian | Thomastown | Ballybarrack | Louth | 1834 |
| Callan | Laurence | Thomastown | Ballybarrack | Louth | 1834 |
| Callin | Patrick | Ballymakenny | Ballymakenny | Louth | 1830 |
| Callin | Patrick | Ballymakenny | Ballymakenny | Louth | 1830 |
| Callin | Michael | Carintown | Ballymakenny | Louth | 1830 |
| Callin | Patrick | Carintown | Ballymakenny | Louth | 1830 |
| Callen | Michael | Carntown | Ballymakenny | Louth | 1830 |
| Callon | Pat | Carrickaslech | Barronstown | Louth | 1834 |
| Callen | Jno | Castletowncooley | Carlingford | Louth | 1833 |
| Callan | Bryan | Ballingan | Castletown | Louth | 1833 |
| Callan | John | Castletown | Castletown | Louth | 1833 |
| Callan | Patrick | Newton Balreagan | Castletown | Louth | 1833 |
| Callan | Brian | Newtown (Balreagan) | Castletown | Louth | 1833 |
| Callan | John | Newtown (Balreagan) | Castletown | Louth | 1833 |
| Callan | Lawrence | Newtown (Balreagan) | Castletown | Louth | 1833 |
| Callan | Brien | Tankards Rock | Castletown | Louth | 1833 |
| Callan | Laurence | Tankards Rock | Castletown | Louth | 1833 |
| Callan | Nicholas | Clonkeehan | Clonkeen | Louth | 1825 |
| Callan | Owen | Clonkeehan | Clonkeen | Louth | 1825 |
| Callan | Peter | Clonkeehan | Clonkeen | Louth | 1825 |
| Callan | John | Corbollis | Clonkeen | Louth | 1825 |
| Callan | Anne | Glack | Clonkeen | Louth | 1825 |
| Callan | John | Glack | Clonkeen | Louth | 1825 |
| Callan | Patrick | Cashels Town Or Castle Thomas | Drumcar | Louth | 1827 |
| Callan | Patrick | Cashole Town Or Castle Thomas | Drumcar | Louth | 1825 |
| Callan | Crawford | Dillonstown | Drumcar | Louth | 1825 |
| Callan | Crawford | Dillonstown | Drumcar | Louth | 1827 |
| Callan | Pat | Drumcar | Drumcar | Louth | 1825 |
| Callan | Pat | Drumcar | Drumcar | Louth | 1825 |
| Callan | Pat | Drumcar | Drumcar | Louth | 1827 |
| Callan | Patrick | Drumcar | Drumcar | Louth | 1825 |
| Callan | Patrick | Drumcar | Drumcar | Louth | 1827 |
| Callan | Pete | Drumcar | Drumcar | Louth | 1827 |
| Callan | Peter | Crumlin | Dundalk | Louth | 1833 |
| Callan | Henry | Lower Marshes | Dundalk | Louth | 1833 |
| Callan | Mount Hamilton | Dundalk | Louth | 1833 | |
| Callan | Michael | Mount Hamilton | Dundalk | Louth | 1833 |
| Callan | Patrick | Mount Hamilton | Dundalk | Louth | 1833 |
| Callan | Patrick | Mount Hamilton | Dundalk | Louth | 1833 |
| Callan | John | North Marsh | Dundalk | Louth | 1833 |
| Callun | Henry | Town Parks | Dundalk | Louth | 1833 |
| Callan | Michael | Upper Marshes | Dundalk | Louth | 1833 |
| Callan | John | Dunleer | Dunleer | Louth | 1833 |
| Callan | John | Dunleer | Dunleer | Louth | 1833 |
| Callan | Phillip | Gallagh | Dysart | Louth | 1825 |
| Callan | Catherine | Balrigan | Faughart | Louth | 1827 |
| Callan | Catherine | Balriggan | Faughart | Louth | 1827 |
| Callan | Cathne | Balriggan | Faughart | Louth | 1827 |
| Callan | James | Haggardstown | Haggardstown | Louth | |
| Callan | James | Haggardstown | Haggardstown | Louth | 1834 |
| Callan | John | Haggardstown | Haggardstown | Louth | |
| Callan | John | Haggardstown | Haggardstown | Louth | 1834 |
| Callan | Laue | Haggardstown | Haggardstown | Louth | |
| Callan | Laue | Haggardstown | Haggardstown | Louth | 1834 |
| Callan | Patt | Haggardstown | Haggardstown | Louth | |
| Callan | Patt | Haggardstown | Haggardstown | Louth | 1834 |
| Callan | Patk | Commons | Kildemock | Louth | 1829 |
| Callan | Anne | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Jno | Poughanstown | Kildemock | Louth | 1829 |
| Callan | John | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Patk | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Peter | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Peter | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Thy | Poughanstown | Kildemock | Louth | 1829 |
| Callan | Patrick | Mullincross | Kilsaran | Louth | 1829 |
| Callan | Anne | Carrecklea | Louth | Louth | 1834 |
| Callan | Pat | Commons of Mulacrew | Louth | Louth | 1834 |
| Callon | Edward | Coolcrethan | Louth | Louth | 1834 |
| Callan | Thomas | Corderry | Louth | Louth | 1834 |
| Callan | Thos | Drumgonnelly | Louth | Louth | 1834 |
| Callan | Manus | Drumgowna and Annaminon | Louth | Louth | 1834 |
| Callan | Edwd | Hoarstown | Louth | Louth | 1834 |
| Callan | Michl | Hoarstown | Louth | Louth | 1834 |
| Callan | Philip | Hoarstown | Louth | Louth | 1834 |
| Callan | Bryan | Mulacrew | Louth | Louth | 1834 |
| Callan | Jas | Mulacrew | Louth | Louth | 1834 |
| Callan | Judith | Mulacrew | Louth | Louth | 1834 |
| Callan | Mathew | Bawn and Mansfieldtown | Mansfieldstown | Louth | 1833 |
| Callan | Matw | Derrycammagh | Mansfieldstown | Louth | 1833 |
| Callan | Owen | Upper Gainstown | Mansfieldstown | Louth | 1833 |
| Callan | John | Corbollis | Philipstown | Louth | 1825 |
| Callan | Henry | Rathneestin | Philipstown | Louth | 1825 |
| Callan | Henry | Rathneestin | Philipstown | Louth | 1825 |
| Callan | Patrick | Rathneestin | Philipstown | Louth | 1825 |
| Callan | Patrick | Rathneestin | Philipstown | Louth | 1825 |
| Callan | Patrick | Polbrock | Stabannan | Louth | |
| Callan | Patrick | Rathbody | Tallanstown | Louth | 1830 |
| Callan | Patk | Tullyard | Termonfeckin | Louth | 1830 |
It looks like the “Laue” Callan of Haggardstown entry should be Lawrence Callan, who was born in 1802.
Thanks