– click on a name to see household information.
| Surname | First Name | Year | State | County | City | Birth Year | Birth Place |
| Callen | Ann | 1850 | MD | Baltimore | Baltimore county, part | 1824 | Ireland |
| Callan | Ann | 1850 | MD | Baltimore | Baltimore, ward 9 | 1844 | MD |
| Callen | Bridget | 1850 | MD | Baltimore | Baltimore, ward 11 | 1832 | Ireland |
| Callan | Bridget | 1850 | MD | Baltimore | Baltimore, ward 9 | 1819 | Ireland |
| Callan | Catharine | 1850 | MD | Baltimore | Baltimore, ward 11 | 1827 | Ireland |
| Callan | Francis | 1850 | MD | Baltimore | Baltimore, ward 5 | 1810 | Ireland |
| Callan | James | 1850 | MD | Baltimore | Baltimore, ward 9 | 1824 | Ireland |
| Callan | Jane L | 1850 | MD | Washington | Boonsboro | 1839 | MD |
| Callen | Patrick | 1850 | MD | Harford | Harford county, part of | 1829 | Ireland |
| Callan | Peter | 1850 | MD | Baltimore | Baltimore, ward 9 | 1848 | MD |
| Callan | Thomas | 1850 | MD | Baltimore | Baltimore, ward 9 | 1828 | MD |
| Callan | Timothy | 1850 | MD | Baltimore | Baltimore, ward 12 | 1826 | PA |