| Oregon Federal Census Index 1900 | ||||
| Baker County | Series T624 Roll 1278 |
|||
| Name | Precinct | ED No. | Sheet No. | Line No. |
| Ingall, George T. | Baker City Ward 4 | 162 | 14 | 41 |
| Ingall, Josephine | Baker City Ward 4 | 162 | 14 | 42 |
| Ingram, Ella J. | Baker City Ward 4 | 162 | 18 | 100 |
| Ireland, Charles L. | Parker | 181 | 3 | 9 |
| Irwin, Allie M. | Baker City Ward 4 | 162 | 23 | 2 |
| Irwin, Daniel T. | Baker City Ward 4 | 162 | 23 | 4 |
| Irwin, Hazel Jerry | Baker City Ward 4 | 162 | 23 | 6 |
| Irwin, Irene | Baker City Ward 4 | 162 | 23 | 3 |
| Irwin, Mimie Edith | Baker City Ward 4 | 162 | 23 | 5 |
| Irwin, Sarah H. | Baker City Ward 4 | 162 | 28 | 31 |
| Ison, Lillith B. | Baker City Ward 4 | 162 | 21 | 25 |
| Ison, Martha J. | Baker City Ward 4 | 162 | 21 | 24 |
| Ison, Oliver P. | Baker City Ward 4 | 162 | 21 | 23 |