| 1930 | Robert C Collins | Head | 35 | Own | White | Married | Delaware | sand & gravel | division mgr | |
| Mary W Collins | Wife | 35 | | White | Married | Delaware | | | |
| Robert Carver Collins, Jr. | Son | 11 | | White | Single | Pennsylvania | | | |
| James Ted Collins | Son | 10 | | White | Single | Delaware | | | |
| Rowland Ross Collins | Son | 8 | | White | Single | Delaware | | | |
| Mary W Collins | Daughter | 4 | | White | Single | Pennsylvania | | | |
| Rosetta Johnson | Servant | 41 | | White | Single | Virginia | private family | cook | |
| 1940 | Robert C Collins | Head | 45 | Own | White | Married | Delaware | Building materials | Retail sales manager | |
| Mary W Collins | Wife | 45 | | White | Married | Delaware | | | |
| Robert Carver Collins, Jr. | Son | 21 | | White | Single | Pennsylvania | Piping contractor | Mechanical engineer | |
| James Ted Collins | Son | 20 | | White | Single | Delaware | Meat packers | File clerk | |
| Rowland Ross Collins | Son | 19 | | White | Single | Delaware | Paint mixers | Clerical assistent | |
| Mary W Collins | Daughter | 15 | | White | Single | Pennsylvania | | | |