| 1900 | August H Mueller | Head | 42 | Own | White | Married | Pennsylvania | | Lithographer | |
| Flora I Mueller | Wife | 39 | | White | Married | Indiana | | | |
| Anna M Mueller | Sister | 32 | | White | Single | Pennsylvania | | | |
| Robert A Mueller | Son | 5 | | White | Single | Pennsylvania | | | |
| Marguerite Elizabeth Mueller | Daughter | 2 | | White | Single | Pennsylvania | | | |
| George H Cleis | Stepson | 21 | | White | Single | Indiana | | Salesman | |
| Arnice S Warick | Servant | 16 | | Black | Single | Maryland | | Servant | |
| 1910 | August H Mueller | Head | 53 | Own | White | Married | Pennsylvania | Publishing Co. | Proprietor | |
| Flora I Mueller | Wife | 49 | | White | Married | Indiana | | | |
| Robert A Mueller | Son | 14 | | White | Single | Pennsylvania | | | |
| Marguerite Elizabeth Mueller | Daughter | 12 | | White | Single | Pennsylvania | | | |
| Emma L Mueller | Daughter | 9 | | White | Single | Pennsylvania | | | |
| Florentine M Mueller | Daughter | 7 | | White | Single | Pennsylvania | | | |
| Mary F Handy | Servant | 25 | | Black | Single | Delaware | Private family | Servant | |
| 1920 | August H Mueller | Head | 63 | Own | White | Married | Pennsylvania | Atlas | Publisher | |
| Flora I Mueller | Wife | 59 | | White | Married | Indiana | | | |
| Robert A Mueller | Son | 24 | | White | Single | Pennsylvania | Railroad | Clerk | |
| Marguerite Elizabeth Mueller | Daughter | 22 | | White | Single | Pennsylvania | Railroad | Stenographer | |
| Emma L Mueller | Daughter | 19 | | White | Single | Pennsylvania | | | |
| Florentine M Mueller | Daughter | 17 | | White | Single | Pennsylvania | | | |
