| Oregon Federal Census Index 1920 | ||||
| Wheeler County | Series T625 | |||
| Name | Precinct | ED No. | Sheet No. | Line No. |
| Zachary, Berth M. | Fossil | 232 | 8 | 23 |
| Zachary, Clarence B. | Fossil | 232 | 8 | 20 |
| Zachary, Harry Dodson | Fossil - Fossil Town | 232 | 6 | 5 |
| Zachary, Howard Sanford | Fossil | 232 | 8 | 22 |
| Zachary, Keneth Earl | Fossil - Fossil Town | 232 | 6 | 6 |
| Zachary, Lilly M. | Fossil | 232 | 8 | 21 |
| Zachary, Rachel Edith | Fossil - Fossil Town | 232 | 6 | 7 |
| Zachary, Tillie M. | Fossil - Fossil Town | 232 | 6 | 4 |
| Ziegler, Henry | Spray | 236 | 5 | 41 |
| Zoboff, Jack | Service Creek | 235 | 2 | 98 |
| Zurisich, Andrew | Spray | 236 | 5 | 77 |