| 1930 | Barry S Mellor | Head | 46 | Own | White | Married | Canada | naval supplies | sales manager | |
| Rosalind C Mellor | Wife | 40 | | White | Married | Pennsylvania | | | |
| Rosalind Mellor | Daughter | 17 | | White | Single | Pennsylvania | | | |
| Barry Stephen Mellor, Jr. | Son | 15 | | White | Single | Pennsylvania | | | |
| Mary June Elizabeth Mellor | Daughter | 10 | | White | Single | Pennsylvania | | | |
| Helen Selene Mellor | Daughter | 9 | | White | Single | Pennsylvania | | | |
| 1940 | Barry S Mellor | Head | 56 | Own | White | Married | Canada | Naval stores | Proprietor retail store | |
| Rosalind C Mellor | Wife | 50 | | White | Married | Pennsylvania | | | |
| Rosalind Blair | Daughter | 27 | | White | Married | Pennsylvania | | | |
| Barry Stephen Mellor, Jr. | Son | 25 | | White | Single | Pennsylvania | | | |
| Mary June Elizabeth Mellor | Daughter | 20 | | White | Single | Pennsylvania | | | |
| Helen Selene Mellor | Daughter | 19 | | White | Single | Pennsylvania | | | |
| Faith Mellor | Daughter | 9 | | White | Single | Pennsylvania | | | |
| Charles W Blair | Grandson | 4 | | White | Single | Massachusetts | | | |