| 1930 | John Robert Johnston | Head | 86 | Own | White | Married | North Ireland | General | Laborer | |
| Annie E Johnston | Wife | 78 | | White | Married | Pennsylvania | | | |
| John Robert Johnston, Jr. | Son | 44 | | White | Widowed | Pennsylvania | P RR | Foreman | |
| Eliza Jane Johnston | Daughter | 32 | | White | Single | Pennsylvania | | Opitican | |
| Catharine R Johnston | Niece | 14 | | White | Single | Pennsylvania | | | |
| Louisa W Johnston | Niece | 7 | | White | Single | Pennsylvania | | | |
| 1940 | Eliza Jane Johnston | Head | 51 | Own | White | Single | Pennsylvania | Opticians Office | Clerk | |
| John Robert Johnston, Jr. | Brother | 53 | | White | Married | Pennsylvania | | | |
| Catharine R Johnston | Niece | 24 | | White | Single | Pennsylvania | | New Worker | |
| Louisa W Johnston | Niece | 17 | | White | Single | Pennsylvania | | | |