| Name | Birth Year | Birth Place |
| Henry Hartby Groves | 1877 | Nottingham, Nottinghamshire, England |
| John Hartley Groves | 1904 | Gloucestershire, England |
| Leslie George Groves | 1910 | Gloucestershire, England |
| May Groves | 1880 | Gloucestershire, England |
| Noel Huscent Groves | 1906 | Gloucestershire, England |
| Reginald Dudley Groves | 1908 | Gloucestershire, England |
| Address | Unknown 6 |
| Parish | Harrow on the Hill |
| Registration District | Hendon |
| County | Middlesex |
Source: findmypast - 1921 Census