| Name | Birth Year | Birth Place |
| Agnes Aitken | 1920 | Cardiff, Glamorganshire, Wales |
| Douglas Aitken | 1886 | Cardiff, Glamorganshire, Wales |
| Douglas Aitken | 1917 | Cardiff, Glamorganshire, Wales |
| George Aitken | 1914 | Port Talbot, Glamorganshire, Wales |
| Hilda Aitken | 1921 | Cardiff, Glamorganshire, Wales |
| Kathleen Aitken | 1912 | Port Talbot, Glamorganshire, Wales |
| Mabel Aitken | 1888 | Cardiff, Glamorganshire, Wales |
| William Aitken | 1913 | Port Talbot, Glamorganshire, Wales |
| Address | Unknown |
| Parish | Cardiff |
| Registration District | Cardiff |
| County | Glamorganshire |
Source: findmypast - 1921 Census