| 1920 | Barry S Mellor | Head | 36 | Own | White | Married | Canada | Oils | Own Shop | |
| Rosalind C Mellor | Wife | 30 | | White | Married | Pennsylvania | | | |
| Alice D Mellor | Daughter | 11 | | White | Single | New Jersey | | | |
| Rosalind Mellor | Daughter | 6 | | White | Single | Pennsylvania | | | |
| Barry Stephen Mellor, Jr. | Son | 4 | | White | Single | Pennsylvania | | | |
| Mary June Elizabeth Mellor | Daughter | 0 | | White | Single | Pennsylvania | | | |
| 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 | | | |
| 1950 | Barry S Mellor | Head | 66 | | White | Married | Canada | Navel Store | Proprietor | |
| Rosalind C Mellor | Wife | 60 | | White | Married | Pennsylvania | | | |
| Rosalind Blair | Daughter | 37 | | White | Divorced | Pennsylvania | | | |
| Charles W Blair | Grandson | 14 | | White | Never | Massachusetts | | | |
| Mary June Elizabeth Mellor | Daughter | 30 | | White | Separated | Pennsylvania | | | born Mellor |
| Barry S Warner | Grandson | 2 | | White | Never | Pennsylvania | | | |
| Faith Mellor | Daughter | 19 | | White | Never | Pennsylvania | Retail Dry Cleaning Store | Clerk | |