| Oregon Federal Census Index 1920 | ||||
| Baker County | Series T625 | |||
| Name | Precinct | ED No. | Sheet No. | Line No. |
| Iamb, N. G. | Huntington Town | 18 | 3 | 7 |
| Iannons*, Geusippe | Huntington Town | 18 | 4 | 98 |
| Iiye, B. | Baker 2 Ward 3 | 3 | 5 | 93 |
| Iiye, C. | Baker 2 Ward 3 | 3 | 5 | 94 |
| Ikouias*, John | Baker 2 Ward 3 | 3 | 3 | 76 |
| Ingall, George | Depot Ward 3 | 7 | 11 | 13 |
| Ingall, Josie | Depot Ward 3 | 7 | 11 | 14 |
| Ingle, A. A. | Baker 2 Ward 2 | 3 | 3 | 49 |
| Ingle, Glen | Baker 2 Ward 2 | 3 | 3 | 50 |
| Ingle, Russell Lawrence | Baker 2 Ward 3 | 3 | 10 | 76 |
| Ingram, Arretta | Baker 3 Ward 4 | 4 | 7 | 30 |
| Ingram, Cleveland | Baker 5 Ward 2 | 5 | 2 | 84 |
| Ingram, John H. | Baker 3 Ward 4 | 4 | 7 | 29 |
| Ingram, Leta | Baker 3 Ward 4 | 4 | 7 | 32 |
| Ingram, Myrtle | Baker 3 Ward 4 | 4 | 7 | 31 |
| Ingram, Vadah | Baker 5 Ward 2 | 5 | 2 | 85 |
| Ingrham, Bert A. | Iron Dyke | 14 | 1 | 83 |
| Ingrham, Carl G. | Iron Dyke | 14 | 1 | 76 |
| Ingrham, Chester E. | Iron Dyke | 14 | 1 | 80 |
| Ingrham, Clara J. | Iron Dyke | 14 | 1 | 79 |
| Ingrham, Earl W. | Iron Dyke | 14 | 1 | 82 |
| Ingrham, Frankie | Copperfield | 14 | 4 | 5 |
| Ingrham, Josephine | Iron Dyke | 14 | 1 | 77 |
| Ingrham, Lawrance | Copperfield | 14 | 4 | 4 |
| Ingrham, Margret J. | Iron Dyke | 14 | 1 | 81 |
| Ingrham, Walter | Copperfield | 14 | 4 | 3 |
| Ingrham, Walter T. | Iron Dyke | 14 | 3 | 41 |
| Ingrham, Walter W. | Iron Dyke | 14 | 1 | 78 |
| Ingrhan, Harry H. | Cornicopia | 14 | 8 | 40 |
| Ingrhan, Hazzel L. | Cornicopia | 14 | 8 | 43 |
| Ingrhan, Mintie T. | Cornicopia | 14 | 8 | 41 |
| Ingrhan, Shered I. | Cornicopia | 14 | 8 | 42 |
| Inman, George | Baker 3 Ward 4 | 4 | 4 | 61 |
| Inman, Julia | Baker 3 Ward 4 | 4 | 4 | 62 |
| Irby, Clara | Baker Precinct 5 | 19 | 1 | 91 |
| Irby, Clarence C. | Baker 2 Ward 3 | 3 | 2 | 58 |
| Irby, Frank | Baker Precinct 5 | 19 | 1 | 92 |
| Irby, Kate | Baker Precinct 5 | 19 | 1 | 90 |
| Irby, Nella | Baker Precinct 5 | 19 | 1 | 89 |
| Irby, Rose | Baker Precinct 5 | 19 | 1 | 87 |
| Irby, Sarah | Baker Precinct 5 | 19 | 1 | 86 |
| Irby, Walter | Baker Precinct 5 | 19 | 1 | 88 |
| Ireland, Myrtle | Baker 2 Ward 3 | 3 | 5 | 41 |
| Ireland, Orlin L. | Baker 2 Ward 3 | 3 | 5 | 40 |
| Iron, Charles P. | Eagle 1 | 15 | 5 | 12 |
| Iron, Clyde | Eagle 1 | 15 | 5 | 14 |
| Iron, Frank M. | Eagle 1 | 15 | 5 | 10 |
| Iron, Hida B. | Eagle 1 | 15 | 5 | 11 |
| Iron, Ira | Eagle 1 | 15 | 5 | 13 |
| Iroores*, Ole | Baker 2 Ward 3 | 3 | 7 | 96 |
| Irvin, Arthur S. | Rock Creek | 16 | 3 | 22 |
| Irvin, George | Rock Creek | 16 | 3 | 21 |
| Irvin, Harold | Wingville | 12 | 1 | 42 |
| Irvin, James | Wingville | 12 | 2 | 59 |
| Irvin, James | Haines | 16 | 13 | 74 |
| Irvin, Joe S. | Depot Ward 3 | 7 | 17 | 28 |
| Irvin, Laura | Clifford | 11 | 1 | 45 |
| Irvin, Lunie* | Clifford | 11 | 1 | 43 |
| Irvin, Luther | Wingville | 12 | 1 | 40 |
| Irvin, Myrtle A. | Clifford | 11 | 1 | 42 |
| Irvin, Reta | Clifford | 11 | 1 | 44 |
| Irvin, Vida | Clifford | 11 | 1 | 46 |
| Irvin, William J. | Clifford | 11 | 1 | 41 |
| Irvin, William K. | Huntington | 18 | 10 | 3 |
| Irvin, William Lee | Wingville | 12 | 1 | 41 |
| Irwin, Ada | Baker 5 Ward 2 | 5 | 4 | 54 |
| Irwin, Adda | Baker 5 Ward 2 | 5 | 4 | 51 |
| Irwin, Andrew | Baker 3 Ward 4 | 4 | 1 | 31 |
| Irwin, Andrew | Baker 3 Ward 4 | 4 | 1 | 33 |
| Irwin, Asa B. | Baker Precinct 5 | 19 | 1 | 9 |
| Irwin, Bartley | Pine #1 - Halfway Town | 21 | 6 | 69 |
| Irwin, Bessie | Baker 6 Ward 1 | 6 | 10 | 9 |
| Irwin, Bessie D. | Pine #2 | 21 | 11 | 74 |
| Irwin, Charles R. | Pine #2 | 21 | 10 | 90 |
| Irwin, Clifford | Pine #2 | 21 | 11 | 73 |
| Irwin, Dela C. | Baker 6 Ward 1 | 6 | 10 | 10 |
| Irwin, Dortha | Baker Precinct 5 | 19 | 1 | 7 |
| Irwin, Edith | Cornicopia | 14 | 9 | 17 |
| Irwin, Edna L. | Pine #2 | 21 | 10 | 91 |
| Irwin, Enid L. | Pine #2 | 21 | 10 | 92 |
| Irwin, Ethel | Baker 5 Ward 2 | 5 | 4 | 53 |
| Irwin, Hadley B. | Baker 5 Ward 2 | 5 | 4 | 57 |
| Irwin, Helen D. | Pine #2 | 21 | 10 | 94 |
| Irwin, Ira | Pine #2 | 21 | 11 | 70 |
| Irwin, Ira | Pine #2 | 21 | 11 | 75 |
| Irwin, Ira | Sumpter - Sumpter City | 23 | 3 | 1 |
| Irwin, Jackson | Baker 5 Ward 2 | 5 | 4 | 55 |
| Irwin, James G. | Baker Precinct 5 | 19 | 1 | 5 |
| Irwin, James R. | Baker 5 Ward 2 | 5 | 4 | 58 |
| Irwin, John | Baker 5 Ward 2 | 5 | 4 | 50 |
| Irwin, John F. | Baker 6 Ward 1 | 6 | 10 | 8 |
| Irwin, Leslie G. | Baker 6 Ward 1 | 6 | 10 | 12 |
| Irwin, Leslie R. | Baker Precinct 5 | 19 | 1 | 10 |
| Irwin, Lora Belle | Pine #2 | 21 | 11 | 72 |
| Irwin, Lorena M. | Pine #1 - Halfway Town | 21 | 5 | 65 |
| Irwin, Maude M. | Pine #2 | 21 | 11 | 71 |
| Irwin, Margaret | Baker 3 Ward 4 | 4 | 1 | 34 |
| Irwin, Mildred C. | Pine #2 | 21 | 10 | 93 |
| Irwin, Mollie | Baker 1 Ward 1 | 6 | 4 | 36 |
| Irwin, Molly | Sumpter - Sumpter City | 23 | 3 | 2 |
| Irwin, Pearl S. | Pine #1 - Halfway Town | 21 | 6 | 70 |
| Irwin, Plesant J. | Baker 5 Ward 2 | 5 | 4 | 52 |
| Irwin, Rodney G. | Baker 6 Ward 1 | 6 | 10 | 11 |
| Irwin, Roland J. | Baker Precinct 5 | 19 | 1 | 8 |
| Irwin, Sam | Pine #1 - Halfway Town | 21 | 5 | 64 |
| Irwin, Sarah | Baker 3 Ward 4 | 4 | 1 | 32 |
| Irwin, Vera J. | Baker Precinct 5 | 19 | 1 | 6 |
| Irwin, Wallis | Baker 5 Ward 2 | 5 | 4 | 56 |
| Irwin, Walter R. | Pine #2 | 21 | 10 | 95 |
| Isaacson, Albert | Iron Dyke | 14 | 2 | 56 |
| Isaacson, Evcenia | Iron Dyke | 14 | 2 | 57 |
| Isbell, Allen R. | Huntington Town | 18 | 1 | 3 |
| Isbell, Annie F. | Huntington Town | 18 | 1 | 6 |
| Isbell, Birttie M. | Huntington Town | 18 | 1 | 7 |
| Isbell, Jeffie R. | Huntington Town | 18 | 1 | 5 |
| Isbell, Katie M. | Huntington Town | 18 | 1 | 4 |
| Ishibe, K. | Baker 2 Ward 3 | 3 | 7 | 98 |
| Ishibe, M. | Baker 2 Ward 3 | 3 | 7 | 99 |
| Ison, Amanda M. | Depot Ward 3 | 7 | 14 | 38 |
| Ison, Arch Haradon | Baker 1 Ward 1 | 6 | 5 | 8 |
| Ison, Bernice P. | South Baker | 20 | 3 | 85 |
| Ison, Frank | Baker 1 Ward 1 | 6 | 5 | 6 |
| Ison, Grover C. | South Baker | 20 | 3 | 83 |
| Ison, Jean Virgil | Baker 1 Ward 1 | 6 | 5 | 7 |
| Ison, Josephine Mrs. | Baker 1 Ward 1 | 6 | 5 | 11 |
| Ison, Leslie O. | Depot Ward 3 | 7 | 14 | 37 |
| Ison, Lev* W. | South Baker | 20 | 3 | 86 |
| Ison, Luther Oliver | Baker 1 Ward 1 | 6 | 5 | 9 |
| Ison, Lyla M. | South Baker | 20 | 3 | 84 |
| Ison, Martha J. | Baker 4 Ward 1 | 5 | 6 | 59 |
| Ison, Mary | Baker 1 Ward 1 | 6 | 5 | 5 |
| Ison, Oliver P. | Baker 4 Ward 1 | 5 | 6 | 58 |
| Ison, Virgil S. D. | Baker 1 Ward 1 | 6 | 5 | 4 |
| Ives, Frank C. | McEwen | 20 | 3 | 18 |
| Ivil, Ida | Baker 6 Ward 1 | 6 | 11 | 19 |
| Ivil, La Ru | Baker 6 Ward 1 | 6 | 11 | 20 |
| Izatt, Alexander | McEwen | 20 | 1 | 51 |
| Izatt, Ellen L. | McEwen | 20 | 1 | 52 |
| Izatt, Floyd S. | McEwen | 20 | 1 | 53 |