| Oregon Federal Census Index 1920 | ||||
| Baker County | Series T625 | |||
| Name | Precinct | ED No. | Sheet No. | Line No. |
| Oakes, Benjamin | Haines | 16 | 15 | 44 |
| Oakes, Isabel | Baker 3 Ward 4 | 4 | 1 | 6 |
| Obart, Bessie A. | Sparta | 22 | 2 | 72 |
| Obart, Cecil B. | Sparta | 22 | 2 | 73 |
| Obart, Clarence O. | Sparta | 22 | 2 | 69 |
| Obart, Elsie L. | Sparta | 22 | 2 | 74 |
| Obart, Emma A. | Sparta | 22 | 2 | 70 |
| Obart, Lewis F. | Sparta | 22 | 2 | 71 |
| Obart, Stanley C. | Sparta | 22 | 2 | 75 |
| Obrien, Maurice | Depot Ward 3 | 7 | 17 | 23 |
| O'Bryan, James E. | Baker 4 Ward 1 | 5 | 12 | 75 |
| O'Bryant, Aufred | Baker 1 Ward 1 | 6 | 3 | 67 |
| O'Bryant, Eva J. | Baker 1 Ward 1 | 6 | 3 | 66 |
| O'Bryant, Franklin | Baker 1 Ward 1 | 6 | 3 | 69 |
| O'Bryant, Gerald | Baker 1 Ward 1 | 6 | 3 | 68 |
| O'Bryant, John F. | Baker 1 Ward 1 | 6 | 3 | 65 |
| O'Connell, James | Baker 6 Ward 1 | 6 | 15 | 100 |
| Odenwalt, Harold | Clifford | 11 | 3 | 9 |
| Odoud, Parich J. | Cornucopia | 14 | 7 | 49 |
| Oernell, Mike J. | Iron Dyke | 14 | 2 | 80 |
| Officer, Bell | Conner Creek | 13 | 2 | 18 |
| Officer, Chris | Conner Creek | 13 | 2 | 19 |
| Officer, Claude | Conner Creek | 13 | 2 | 17 |
| Officer, Genivie* | Conner Creek | 13 | 2 | 20 |
| Officer, Vernon | Conner Creek | 13 | 2 | 21 |
| Ogawa, Kantaro | Huntington Town | 18 | 7 | 33 |
| Ogilvie, John M. | Baker 6 Ward 1 | 6 | 7 | 18 |
| Oglisby, Althea B. | Huntington Town | 18 | 3 | 83 |
| Oglisby, Charles L. | Huntington Town | 18 | 3 | 80 |
| Oglisby, Ethel A. | Huntington Town | 18 | 3 | 81 |
| Oglisby, James F. | Huntington Town | 18 | 3 | 82 |
| O'Gorman, John M. | Depot | 20 | 6 | 63 |
| O'Hard, Benjamin | Baker 2 Ward 3 | 3 | 10 | 36 |
| O'Hard, Hazel | Baker 2 Ward 3 | 3 | 10 | 38 |
| O'Hard, Sallie* O. | Baker 2 Ward 3 | 3 | 10 | 37 |
| Ohmmer, John | Baker 1 Ward 1 | 6 | 6 | 56 |
| Ohms, Helen | South Baker | 20 | 4 | 9 |
| Ohms, Margaret W. | South Baker | 20 | 4 | 8 |
| Ohms, William | South Baker | 20 | 4 | 7 |
| Okafuji, George | Baker 2 Ward 3 | 3 | 3 | 99 |
| Okinaga, S. | Clifford | 11 | 2 | 98 |
| Okytki, S. | Clifford | 11 | 2 | 72 |
| Olds, Mervin | Baker 1 Ward 1 | 6 | 4 | 57 |
| Olds, Vera | Baker 2 Ward 3 | 3 | 6 | 45 |
| Olds, Vernice | Baker 1 Ward 1 | 6 | 4 | 58 |
| Olesgne, Jack | Copperfield | 14 | 5 | 64 |
| Oleson, Chris | Depot Ward 3 | 7 | 11 | 79 |
| Oleson, Emma | Depot Ward 3 | 7 | 11 | 80 |
| Oleson, John | Depot Ward 3 | 7 | 17 | 59 |
| Oleson, John H. | South Baker Ward 3 | 7 | 10 | 3 |
| Oleson, John Jr. | South Baker Ward 3 | 7 | 10 | 4 |
| Oleson, Mary | Depot Ward 3 | 7 | 17 | 60 |
| Oliver, Alice M. | Lookout | 19 | 5 | 66 |
| Oliver, Amanda | Baker 6 Ward 1 | 6 | 12 | 84 |
| Oliver, Arthur | Bed Rock | 8 | 1 | 73 |
| Oliver, Arthur | Bed Rock | 8 | 2 | 75 |
| Oliver, Charles A. | Pine #1 | 21 | 3 | 69 |
| Oliver, Charles W. | Pine #1 | 21 | 3 | 71 |
| Oliver, Claude A. | Baker 6 Ward 1 | 6 | 12 | 83 |
| Oliver, David M. | Pine #1 | 21 | 3 | 72 |
| Oliver, Elsie | Durkee | 1 | 3 | 18 |
| Oliver, Eunice U. | Pine #1 | 21 | 3 | 78 |
| Oliver, George H. | Pine #1 | 21 | 3 | 73 |
| Oliver, Helen | Bed Rock | 8 | 1 | 72 |
| Oliver, Henry K. | Pine #1 | 21 | 3 | 76 |
| Oliver, Jay | Bed Rock | 8 | 1 | 71 |
| Oliver, Jesse | Durkee | 1 | 3 | 17 |
| Oliver, Joseph D. | Pine #1 | 21 | 3 | 74 |
| Oliver, Julia | Durkee | 1 | 3 | 16 |
| Oliver, Leland | Bed Rock | 8 | 2 | 77 |
| Oliver, Mable | Pine #1 | 21 | 3 | 70 |
| Oliver, Neta M. | Baker 6 Ward 1 | 6 | 12 | 86 |
| Oliver, Nettie P. | Pine #1 | 21 | 3 | 77 |
| Oliver, Rose | Bed Rock | 8 | 2 | 76 |
| Oliver, Verril | Baker 6 Ward 1 | 6 | 12 | 85 |
| Oliver, Walter G. | Lookout | 19 | 5 | 65 |
| Oliver, Wesley | Eagle 1 | 15 | 3 | 70 |
| Olk, Finley U. | Pine #2 | 21 | 14 | 15 |
| Olk, Jessie M. | Pine #2 | 21 | 14 | 14 |
| Olk, Willie R. | Pine #2 | 21 | 14 | 13 |
| Olmsted, Daisy B. | Baker 6 Ward 1 | 6 | 14 | 66 |
| Olmsted, Louie L. | Baker 6 Ward 1 | 6 | 14 | 65 |
| Olsen, Annie | Alder | 1 | 6 | 11 |
| Olsen, Bertha | Baker 3 Ward 4 | 4 | 7 | 52 |
| Olsen, Bessie | Baker 2 Ward 2 | 3 | 3 | 12 |
| Olsen, Clifford | Alder | 1 | 6 | 12 |
| Olsen, Daisy | Alder | 1 | 6 | 10 |
| Olsen, Daisy M. | Alder | 1 | 6 | 6 |
| Olsen, Elton | Baker 2 Ward 2 | 3 | 11 | 55 |
| Olsen, Farris | Alder | 1 | 6 | 8 |
| Olsen, Frank L. | Baker 3 Ward 4 | 4 | 7 | 51 |
| Olsen, Gertrude | Baker 2 Ward 2 | 3 | 3 | 72 |
| Olsen, Hans | Alder | 1 | 6 | 5 |
| Olsen, Hattie | Baker 2 Ward 2 | 3 | 11 | 54 |
| Olsen, Jacob C. | Baker 5 Ward 2 | 5 | 2 | 100 |
| Olsen, John W. | Baker 3 Ward 4 | 4 | 7 | 53 |
| Olsen, Lester L. | Huntington Town | 18 | 7 | 63 |
| Olsen, Lewis | Baker 2 Ward 2 | 3 | 3 | 11 |
| Olsen, Martin | Alder | 1 | 6 | 7 |
| Olsen, Nellie | Alder | 1 | 6 | 9 |
| Olson, Agnes C. | Eagle 1 | 15 | 6 | 29 |
| Olson, Alfred | South Baker | 20 | 3 | 56 |
| Olson, Annabel | Haines | 16 | 15 | 82 |
| Olson, Armine | Eagle 1 | 15 | 6 | 28 |
| Olson, Arthur L. | Haines | 16 | 7 | 40 |
| Olson, Bertha M. | Haines | 16 | 7 | 41 |
| Olson, Calvin | Haines | 16 | 15 | 84 |
| Olson, Charles | Haines | 16 | 8 | 16 |
| Olson, Charles E. | Pocahontas | 12 | 5 | 95 |
| Olson, Christian | Pocahontas | 12 | 5 | 93 |
| Olson, Clesta I. | Haines | 16 | 8 | 17 |
| Olson, Conrad | Haines | 16 | 8 | 25 |
| Olson, Dorthy V. | South Baker | 20 | 3 | 59 |
| Olson, Emma L. | Eagle 1 | 15 | 6 | 15 |
| Olson, Eric | Clifford | 11 | 2 | 29 |
| Olson, Frances L. | Haines | 16 | 7 | 42 |
| Olson, Frank | Clifford | 11 | 2 | 23 |
| Olson, Gladys | Haines | 16 | 15 | 83 |
| Olson, Hazel I. | South Baker | 20 | 3 | 57 |
| Olson, Helmet | Haines | 16 | 15 | 81 |
| Olson, Ingberg | Pocahontas | 12 | 5 | 94 |
| Olson, James* | Haines | 16 | 8 | 23 |
| Olson, Jessie* | Haines | 16 | 8 | 24 |
| Olson, John | Clifford | 11 | 2 | 24 |
| Olson, Katie V. | Haines | 16 | 8 | 18 |
| Olson, Lena J. | Haines | 16 | 8 | 19 |
| Olson, Lenord V. | Eagle 1 | 15 | 6 | 31 |
| Olson, Lisa J. | Haines | 16 | 8 | 15 |
| Olson, Marion R. | Eagle 1 | 15 | 6 | 30 |
| Olson, Martin | Eagle 1 | 15 | 6 | 27 |
| Olson, Melvin J. | South Baker | 20 | 3 | 60 |
| Olson, Ole | Clifford | 11 | 2 | 25 |
| Olson, Peter | Baker 3 Ward 3 | 7 | 3 | 11 |
| Olson, Peter | Eagle 1 | 15 | 6 | 14 |
| Olson, Thelma O. | South Baker | 20 | 3 | 58 |
| Olson, Thomas* | Haines | 16 | 8 | 26 |
| Olson, Tresa I. | Haines | 16 | 8 | 20 |
| Olson, Troy D. | Eagle 1 | 15 | 6 | 32 |
| Olson, Wayne F. | Eagle 1 | 15 | 6 | 33 |
| Olthoff, Henry | Huntington | 18 | 9 | 4 |
| Omori, Y. | Depot Ward 3 | 7 | 12 | 47 |
| O'Neal, Vernon | Baker 2 Ward 3 | 3 | 9 | 61 |
| O'neil, Agnes | Haines | 16 | 16 | 35 |
| Oneil, Arthur J. | Huntington Town | 18 | 5 | 63 |
| O'Neil, Benjamin | Hereford | 17 | 2 | 22 |
| O'neil, Edward | Haines | 16 | 16 | 34 |
| Oneil, Glenn E. | Huntington Town | 18 | 3 | 97 |
| O'Neil, Irene | Hereford | 17 | 2 | 23 |
| O'Neill, James | Depot Ward 3 | 7 | 17 | 36 |
| Ong, Jack | Clifford | 11 | 2 | 59 |
| Ordoff, Alfred F. | Baker Precinct 5 | 19 | 2 | 91 |
| Ordoff, Dora | Baker Precinct 5 | 19 | 2 | 94 |
| Ordoff, Dortha | Baker Precinct 5 | 19 | 2 | 93 |
| Ordoff, Edith S. | Baker Precinct 5 | 19 | 2 | 92 |
| Orr, Floyd A. | Pine #1 | 21 | 9 | 17 |
| Orr, Gladys A. | Haines | 16 | 8 | 97 |
| Orr, Lowell O. | Pine #1 | 21 | 9 | 20 |
| Orr, Margaret E. | Pine #1 | 21 | 9 | 16 |
| Orr, Ralph W. | Pine #1 | 21 | 9 | 19 |
| Orr, Rowena E. | Haines | 16 | 8 | 96 |
| Orr, Wilda M. | Pine #1 | 21 | 9 | 18 |
| Orr, William O. | Pine #1 | 21 | 9 | 15 |
| Orwell, Nancy | Baker 2 Ward 3 | 3 | 8 | 41 |
| Osborn, Ella | Baker 3 Ward 4 | 4 | 5 | 36 |
| Osborn, Editha | Baker 4 Ward 1 | 5 | 8 | 38 |
| Osborn, Gurtrude | Baker 3 Ward 4 | 4 | 5 | 38 |
| Osborn, Jessie A. | Pocahontas | 12 | 5 | 36 |
| Osborn, Johanna | Depot Ward 3 | 7 | 17 | 58 |
| Osborn, Julia | Baker 3 Ward 4 | 4 | 5 | 39 |
| Osborn, Louis | Depot Ward 3 | 7 | 17 | 57 |
| Osborn, Martin | Baker 3 Ward 4 | 4 | 5 | 40 |
| Osborn, Mary A. | Pocahontas | 12 | 5 | 38 |
| Osborn, Milton | Baker 3 Ward 4 | 4 | 5 | 35 |
| Osborn, Minnie M. | Pocahontas | 12 | 5 | 37 |
| Osborn, Orin R. | Baker 4 Ward 1 | 5 | 8 | 37 |
| Osborn, Peter F. | Rock Creek | 16 | 2 | 83 |
| Osborn, Rosa L. | Rock Creek | 16 | 2 | 84 |
| Osborn, Stephen | Baker 1 Ward 1 | 6 | 4 | 84 |
| Osborn, William | Baker 3 Ward 4 | 4 | 5 | 37 |
| Osburns*, Eugene | Baker 4 Ward 1 | 5 | 5 | 51 |
| Osburns*, Ray | Baker 4 Ward 1 | 5 | 5 | 50 |
| Osgood, Eugine | Baker 4 Ward 1 | 5 | 10 | 78 |
| Osgood, George | Unity | 2 | 2 | 19 |
| Osgood, Hazel D. | Baker 4 Ward 1 | 5 | 10 | 80 |
| Osgood, Helen | Baker 4 Ward 1 | 5 | 10 | 81 |
| Osgood, May E. | Baker 4 Ward 1 | 5 | 10 | 79 |
| Osgood, Roy | Unity | 2 | 3 | 25 |
| Ostlund, Anna | Sumpter - Sumpter City | 23 | 2 | 75 |
| Ostlund, Edward | Sumpter - Sumpter City | 23 | 2 | 76 |
| Ostlund, Lewis | Sumpter - Sumpter City | 23 | 2 | 74 |
| Ostwold,Paul W. | Baker 2 Ward 3 | 3 | 2 | 19 |
| Otsuki, R. | Clifford | 11 | 2 | 66 |
| Otsuki, S. | Clifford | 11 | 2 | 67 |
| Otsuki, T. | Clifford | 11 | 2 | 68 |
| Overly, Charles E. | Baker 4 Ward 1 | 5 | 10 | 14 |
| Overly, Ester | Huntington Town | 18 | 5 | 43 |
| Overly, Lettice | Baker 4 Ward 1 | 5 | 10 | 15 |
| Overly, William L. | Huntington Town | 18 | 5 | 42 |
| Owen, Arminda | Baker 3 Ward 4 | 4 | 11 | 2 |
| Owen, William A. | Baker 3 Ward 4 | 4 | 11 | 1 |
| Owens, Andrew P. | Depot Ward 4 | 7 | 20 | 88 |
| Owens, Armanda | Baker 4 Ward 1 | 5 | 15 | 43 |
| Owens, Blanche L. | Haines | 16 | 10 | 37 |
| Owens, Catherine | Eagle 1 | 15 | 2 | 91 |
| Owens, Doris | Depot Ward 4 | 7 | 20 | 91 |
| Owens, Emma | Depot Ward 4 | 7 | 20 | 89 |
| Owens, Howard | Eagle 1 | 15 | 2 | 93 |
| Owens, Lincoln H. | Haines | 16 | 10 | 36 |
| Owens, Mildred | Depot Ward 4 | 7 | 20 | 90 |
| Owens, Miles | Depot Ward 4 | 7 | 20 | 93 |
| Owens, Ray | Depot Ward 4 | 7 | 20 | 92 |
| Owens, Wallace J. | Eagle 1 | 15 | 2 | 92 |
| Owens, William A. | Baker 4 Ward 1 | 5 | 15 | 42 |
| Oxman, Cleia | Baker 3 Ward 4 | 4 | 5 | 81 |
| Oxman, Frank C. | Baker 3 Ward 4 | 4 | 5 | 80 |
| Oxman, Kenneth F. | Baker 3 Ward 4 | 4 | 5 | 82 |
| Oxnard, Jolia Ellen | Baker 3 Ward 4 | 4 | 13 | 25 |
| Oxnard, Leroy E. | Baker 4 Ward 1 | 5 | 9 | 96 |
| Oxnard, Ruby E. | Baker 4 Ward 1 | 5 | 9 | 97 |
| Oxnard, Ruth | Baker 4 Ward 1 | 5 | 9 | 98 |