| Ogan | J. M. | 729 | History of Santa Clara County - 1881 |
| Ogan | Forrest | 136 | Tulare Community War Album - 1945 |
| Ogborn | Everett F. | 120 | History of Santa Barbara County - 1939 |
| Ogborn | Marie L | 579 | History of Contra Costa - 1926 |
| Ogborn | Joseph B | 579 | History of Contra Costa - 1926 |
| Ogden | F. B. | V.i-641 | The Bay of San Francisco - A History - 1892 |
| Ogden | Peter [Skene] | 28 | Fresno County: The Pioneer Years to 1900- 1984 |
| Ogden | George A | 421 | History of Yolo County - 1913 |
| Ogden | Henry T. | 866 | A History of New California - 1905 - 2nd Ed. |
| Ogden | James A | 441 | History of Kern County - 1914 |
| Ogden | James | 38 | History of Kern County - 1929 |
| Ogden | Robert L | 789 | History of Yolo County - 1913 |
| Ogden | Robert L | 854 | Biographical Record of the Sacramento Valley - 1906 |
| Ogden | Samuel | 300 | History of Butte County - 1882 |
| Ogden | Elmer E. (Prof.) | 546 | History of the San Joaquin Valley - 1905 |
| Ogden | Mr. | 639 | History of Tulare & Kings Cos. - 1913 |
| Ogden | William | 179, 330, 690 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Wanda | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Robert K (B) | 864 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Catherine Fisher | 864 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Ralph | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Pearl Mathewson | 542, 625, 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Mathew B. | 864 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Lettie | 690 | History of Tulare & Kings Cos. - 1913 |
| Ogden | John | 690 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Elizabeth Robinson Burton | 690 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Beulah | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Beryl | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Arthur M. | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Harry R. | 865 | History of Tulare & Kings Cos. - 1913 |
| Ogden | Peter Skene | 58 | Pioneer Communities of Porterville, Vandalia and Porterville - 1983 |
| Ogden | Frederick | ~ | Society of California Pioneers - 1912 |
| Ogden | Peter S. | 22 | The Way It Was - Tulare Co. - Mitchell - 1998 |
| Ogden | William | 78 | History of Kings Co. - 1940 |
| Ogend | Isabelita | 65, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Ogg | Judy | 129 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Oghurn | Brothers | 1466 | Biographical Record of the Sacramento Valley - 1906 |
| Ogier | Margaret B. (Mrs.) | 265 | Biographical Record of Coast Counties - 1904 - Ver. 1 |
| Ogier | S. K. Mrs. | 185, 248 | History of Santa Clara County - 1922 |
| Ogier | S. K. | 62, 94 | History of Santa Clara County - 1922 |
| Ogier | James Lee (B) | 1451 | History of Santa Clara County - 1922 |
| Ogilvie | J. Raymond | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | William J. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Sarah Frances Jasper Askin | 649 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Oscar O. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Margaret Norman | 649 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Laura A. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Johnson | 649 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | J. Alden | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Howard J. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Harry J. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Fred N. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Cora Blackburn | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Benjamin A. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Albert G (B) | 649 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | A. G. | 67 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | Addie F. | 650 | History of Tulare & Kings Cos. - 1913 |
| Ogilvie | John | ~ | Society of California Pioneers - 1912 |
| OGILVIE | Howard Homer | 147 | Dinuba War Album - 1944 |
| OGILVIE | Howard Mr & Mrs | 147 | Dinuba War Album - 1944 |
| Ogle | John H. | 608 | History of the San Joaquin Valley - 1905 |
| Ogle | Mr. | 197 | History of Tulare & Kings Cos. - 1913 |
| Ogle | George | 402, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Ogle | George | 585 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Ogle | John Alan | 288 | History of Sonoma County - 1937 |
| Ogle | B | 147 | Alta Pioneers - 1924 - Tulare Co. |
| Oglesby | C. R | 39 | History of Tulare Co. - 1926 |
| Oglesby | W. W. | 593 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oglesby | Nancy M. (Morrison) | 593 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oglesby | Sara J. (Morrison) | 593 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oglivie | William M | 713 | History of Pomona Valley - 1920 |
| Ogram | Johnson (illus.) | 68 | History of Santa Barbara County - 1939 |
| Ogram | John William (illus.) | 68 | History of Santa Barbara County - 1939 |
| OH | Oho | 150 | Dinuba War Album - 1944 |
| OH | Edward | 148 | Dinuba War Album - 1944 |
| OH | Samuel | 150 | Dinuba War Album - 1944 |
| OH | Paul | 150 | Dinuba War Album - 1944 |
| OH | Michael | 148 | Dinuba War Album - 1944 |
| OH | Eli | 150 | Dinuba War Album - 1944 |
| OH | Nick | 148 | Dinuba War Album - 1944 |
| Ohlandt | Nicholas | 164, Vol. 2 | History of the San Francisco Bay Region - 1924 |
| Ohlandt | Nicholas | 381, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Ohleyer | George | 464 | History of Yuba and Sutter Counties - 1924 |
| Ohleyer | George Sr | 320 | History of Yuba and Sutter Counties - 1924 |
| Ohlsen | Harry J | 1945 | History of South Coast Counties - 1907 |
| Ohlsson | Erick W | 1344 | History of Stanislaus County - 1921 |
| Ohm | Thomas | 132 | History of San Joaquin Co. - 1879 |
| Ohm | Rebecca | 902 | A History of New California - 1905 - 2nd Ed. |
| Ohm | John | 908 | A History of New California - 1905 - 2nd Ed. |
| Ohm | Jacob | 969 | A History of New California - 1905 - 2nd Ed. |
| Ohm | Thomas | 762 | Biographical Record of the Sacramento Valley - 1906 |
| Ohm | Henry Thomas | 972 | History of San Joaquin Co. - 1923 |
| Ohm | Rebecca Mrs. | 975 | History of San Joaquin Co. - 1923 |
| Ohmart | Jacob L | 1455 | History of Stanislaus County - 1921 |
| Ohmstede | Otto E | 408 | History of Imperial County - 1918 |
| Ohre | Chris N | 1733 | History of South Coast Counties - 1907 |
| Ohrt | Fred | 998 | Biographical Record of the Sacramento Valley - 1906 |
| Oilar | John Lincoln | 604 | History of San Luis Obispo Co. and Environs- 1917 |
| OKAMOTO | George | 150 | Dinuba War Album - 1944 |
| OKAMURA | H. Mr & Mrs | 149 | Dinuba War Album - 1944 |
| OKAMURA | Shinji Jack | 149 | Dinuba War Album - 1944 |
| Okazaki | girls | 74 | Orosi: In the beginning: 1888-1988 |
| Olark | H. F. | 467 | Memorial & Biographical History of Santa Barbara, San Luis Obispo & Ventura Cos. - 1891 |
| Olcese | L. V. | 509 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Old | Henry W | 482 | Memorial & Biographical History of Santa Barbara, San Luis Obispo & Ventura Cos. - 1891 |
| Old | Henry W | 1967 | History of South Coast Counties - 1907 |
| Oldemeyer | M. H. | Vol. 2-205 | History of Sacramento Valley - 1931 |
| Olden | Maria E. LEVIS | 600 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oldendorf | J. M. | 1010 | Historical and Biographical Record of So. Calif. - 1902 |
| Oldenhage | Horace Walter | 919 | History of Stanislaus County - 1921 |
| Older | Fremont Mrs. | 291 | History of Santa Clara County - 1922 |
| Olderby | James | 813 | History of Tulare & Kings Cos. - 1913 |
| Olderby | Minerva Neal | 813 | History of Tulare & Kings Cos. - 1913 |
| Olderby | William M. | 813 | History of Tulare & Kings Cos. - 1913 |
| Oldershaw | Clement D. | 929 | History of the San Joaquin Valley - 1905 |
| Oldfield | Milo | 5 #3 4/49 | Los Tulares: 1948 - 11/86 |
| Oldham | William F. | 818 | Biographical Record of Coast Counties - 1904 - Ver. 1 |
| Oldham | Frank | 292 | History of Santa Clara County - 1922 |
| Oldham | Gertrude Gordon | 2 #21 12/54 | Los Tulares: 1948 - 11/86 |
| OLDHAM | E. S. Mr & Mrs | 149 | Dinuba War Album - 1944 |
| OLDHAM | Eileen Mrs | 149 | Dinuba War Album - 1944 |
| OLDHAM | Clyde C. | 149 | Dinuba War Album - 1944 |
| OLDHAM | Morgan E. | 149 | Dinuba War Album - 1944 |
| Oldham | Isabelle | 267, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Oldham | George W. | 267, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Oldham | Louis F (B) | 1137 | History of Santa Clara County - 1922 |
| Oldham | Daniel | 518 | History of Contra Costa - 1926 |
| Oldham | Loren | 117 | Tulare Community War Album - 1945 |
| Oldorff | Bertha THATCHER | 729 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | Elizabeth Lee | 800 | History of Merced County - 1925 |
| Olds | Nelson | 678 | History of South Coast Counties - 1907 |
| Olds | Jake M | 1398 | History of Stanislaus County - 1921 |
| Olds | Edward Jerome | 800 | History of Merced County - 1925 |
| Olds | Lewis | 336 | Biographical History of Northern California - 1891 - Ver. 1 |
| Olds | W. B. | 94 | History of Santa Clara County - 1922 |
| Olds | William B. | ~ | Society of California Pioneers - 1912 |
| Olds | Mr. | 233 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | James D. | 488 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | H. P. | 237, 270, 468 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | Bernice S. (Pavey) | 488 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | B. S. | 270 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olds | Miss (_) | 270 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oleese | Andrew | 503 | Biographical Record of Oakland & Environs - 1907 |
| Olendorf | W. D | 667 | Biographical History of Northern California - 1891 - Ver. 1 |
| Oles | Roy | 3 #132 9/81 | Los Tulares: 1948 - 11/86 |
| Olesen | Andrew J | 1168 | History of Stanislaus County - 1921 |
| Olesen | Haus O. J | 665 | History of Monterey & San Benito Cos. - 1910 |
| Olewiler | Hester Tripp (D.O) | 1615 | History of Orange County - 1921 |
| Olgiati | Charles | 990 | History of San Luis Obispo Co. and Environs- 1917 |
| Olhasso | John A | 1367 | History of South Coast Counties - 1907 |
| Olin | Calvin B | 442 | History of Los Angeles and Vicinity - Guinn - 1901 |
| Olinder | Selma B. (Mrs.) | 1080 | Biographical Record of Coast Counties - 1904 - Ver. 1 |
| Olinder | A. M. Mrs. | 251 | History of Santa Clara County - 1922 |
| Olinger | W. L | 1837 - Vol. II | History of Fresno County - 1919 |
| OLINGER | W. B. Mr & Mrs | 149 | Dinuba War Album - 1944 |
| OLINGER | William Blue (Bill) Jr | 149 | Dinuba War Album - 1944 |
| Oliphant | Pearl | 96 | History of Monterey & Santa Cruz Counties - 1925 |
| Olivares | Blas | 1913 | History of South Coast Counties - 1907 |
| Olivas | Carmen | 6 #144 8/84 | Los Tulares: 1948 - 11/86 |
| Olivas | Henry | 6 #144 8/84 | Los Tulares: 1948 - 11/86 |
| Olivas | Pete | 6 #144 8/84 | Los Tulares: 1948 - 11/86 |
| Olivas | Max | 118 | Orosi: In the beginning: 1888-1988 |
| Olive | LeBaron R | 353 | History of Santa Cruz Co. - 1892 |
| Olive | John H | 955 | History of Alameda County - 1883 |
| Oliveira | Joseph A. | 719 | History of Merced County - 1925 |
| Oliveira | Antonio Soares de | 73 | History of Siskiyou County - 1881 |
| Oliveira | Antonio A | 1166 | History of Stanislaus County - 1921 |
| Oliveira | Manuel | 244 | History of Alameda Co. - 1928 |
| Oliveira | Emanuel d' | ~ | Society of California Pioneers - 1912 |
| Oliveiri | Edward | 1063 | History of Contra Costa - 1926 |
| Oliver | L. G | 268 | Memorial & Biographical History of Santa Barbara, San Luis Obispo & Ventura Cos. - 1891 |
| Oliver | Orie | 289 | Fresno County: The Pioneer Years to 1900- 1984 |
| Oliver | Lawrence | 11-12 | History of San Diego County - 1936 |
| Oliver | Orie Odell | 1699 - Vol. II | History of Fresno County - 1919 |
| Oliver | G. W. | 694 | Biographical History of Northern California - 1891 - Ver. 1 |
| Oliver | A. W. | 621 | History of Santa Clara County - 1881 |
| Oliver | H. A. | 267 | History of Napa and Lake Co. - 1881 |
| Oliver | John M. | 1130 | Biographical Record of Coast Counties - 1904 - Ver. 2 |
| Oliver | Frank W. | 820 | Biographical Record of Coast Counties - 1904 - Ver. 2 |
| Oliver | John E. (M. D.) | 219 | History of San Joaquin County - 1909 |
| Oliver | Joseph K. | 413 | History of Santa Cruz, San Benito, Monterey & San Luis Obispo Cos. - 1903 |
| Oliver | George Davidson | 906 | History of Placer & Nevada Cos. - 1924 |
| Oliver | Mary (Mrs.) | 1938 - Vol. II | History of Fresno County - 1919 |
| Oliver | John | 300 | History of Ventura Co. - 1926 |
| Oliver | Benjamin | 792 | Biographical History of Northern California - 1891 - Ver. 1 |
| Oliver | J. A. | 103 | History of Yolo County - 1879 |
| Oliver | D. R. | 378 | History of Merced, Stanislaus, Calaveras, Tuolumne & Mariposa - 1892 |
| Oliver | Andrew | 484 | Biographical Record of Coast Counties - 1904 - Ver. 1 |
| Oliver | Boyd | Vol. 2-227 | History of Sacramento Valley - 1931 |
| Oliver | C. A. (M. D.) | 1645 | Biographical Record of the Sacramento Valley - 1906 |
| Oliver | Charles C | 835 | History of Sonoma County - 1911 |
| Oliver | W. F | 694 | Biographical History of Northern California - 1891 - Ver. 1 |
| Oliver | T. | 918 | Historical and Biographical Record of So. Calif. - 1902 |
| Oliver | William J. | 872 | Historical and Biographical Record of So. Calif. - 1902 |
| Oliver | Lieutennant | 25 | History of Tulare & Kings Cos. - 1913 |
| Oliver | General | 835 | History of Tulare & Kings Cos. - 1913 |
| Oliver | Chas. W | 121 | History of Santa Clara County - 1922 |
| Oliver | A. W. | 215 | History of Santa Clara County - 1922 |
| Oliver | Oscar L. | 244 | History of Santa Clara County - 1922 |
| Oliver | S. S. | 193 | History of Santa Clara County - 1922 |
| Oliver | Remi | 181 | Pioneer Communities of Porterville, Vandalia and Porterville - 1983 |
| Oliver | William E. | 536; Vol. III | History of Los Angeles and Environs - 1915 |
| Oliver | Allen | ~ | Society of California Pioneers - 1912 |
| Oliver | David | ~ | Society of California Pioneers - 1912 |
| Oliver | Denis J. | ~ | Society of California Pioneers - 1912 |
| Oliver | R. E. | 2 #87 12/70 | Los Tulares: 1948 - 11/86 |
| OLIVER | R. B. Mr. & Mrs. | 147 | Dinuba War Album - 1944 |
| OLIVER | Robert A. Jr. | 147 | Dinuba War Album - 1944 |
| OLIVER | Donald | 147 | Dinuba War Album - 1944 |
| OLIVER | Robert A. | 147 | Dinuba War Album - 1944 |
| OLIVER | Robert | 147 | Dinuba War Album - 1944 |
| OLIVER | Morris Mrs | 65 | Dinuba War Album - 1944 |
| OLIVER | Elsa | 147 | Dinuba War Album - 1944 |
| OLIVER | Arthur S. | 147 | Dinuba War Album - 1944 |
| OLIVER | Lyle B. | 147 | Dinuba War Album - 1944 |
| OLIVER | Nancy Lee (Iverson) Mrs | 147 | Dinuba War Album - 1944 |
| Oliver | Judge | 11, Vol. 3 | History of the San Francisco Bay Region - 1924 |
| Oliver | J. S. | 695 | Illustrated History of Sonoma County - 1889 |
| Oliver | Emery | 365 | History of Butte Co. - 1918 |
| Oliver | C. A. | 318 | History of Butte Co. - 1918 |
| Oliver | Lt. | 175 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oliver | Mary HELM | 606 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oliver | Mary LARKINS | 340 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Oliver | E. W. Judge | 354 | History of Kings Co. - 1940 |
| Oliveras | Joseph | 1508 | History of Orange County - 1921 |
| Oliveto | Katheryn | 349 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olivieri | Leonida M. D. | 1284 | History of San Joaquin Co. - 1923 |
| Ollason | Wallace E. | 610 | History of Monterey & San Benito Cos. - 1910 |
| Ollason | Stanley W. | 630 | History of Monterey & San Benito Cos. - 1910 |
| Ollson | Charles Mrs. | 3 #27 6/56 | Los Tulares: 1948 - 11/86 |
| Olmstead | William L. | 2135 | History of South Coast Counties - 1907 |
| Olmstead | William T. | 1401 | Biographical Record of Coast Counties - 1904 - Ver. 2 |
| Olmstead | William T. | 1142 | History of Humboldt County - 1915 |
| Olmstead | Vesta (Miss) | 284 | An Illustrated History of Los Angeles County - 1889 |
| Olmstead | Charles H. | 2376 - Vol. II | History of Fresno County - 1919 |
| Olmstead | Frank | 188 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olmsted | John C | 1363 | History of South Coast Counties - 1907 |
| Olmsted | L. C. | 1070 | Biographical Record of Coast Counties - 1904 - Ver. 2 |
| Olmsted | Frederick Law | 272 | Fresno County: The Pioneer Years to 1900- 1984 |
| Olmsted | Horace | 96 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olmsted | H. A | 898; Vol. III | History of Los Angeles and Environs - 1915 |
| Olmsted | Mr. | 306 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olmsted | John A. | 69 | History of Sonoma County - 1937 |
| Olness | Mrs. | 317 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olney | Elbert | V.i-449 | The Bay of San Francisco - A History - 1892 |
| Olney | E. W. | 1153 | Historical and Biographical Record of So. Calif. - 1902 |
| Olney | James E. | 76, 77 | Fresno County: The Pioneer Years to 1900- 1984 |
| Olney | James | 138 | Genocide & Vendetta: The Round Valley Wars |
| Olney | Mr. | 822 | History of Fresno, Tulare & Kings Cos. - 1892 |
| Olney | Warren | 57 | History of Fresno, Tulare & Kings Cos. - 1892 |
| OLOAN | George Grant | 150 | Dinuba War Album - 1944 |
| OLOAN | John G. Mr. & Mrs. | 150 | Dinuba War Album - 1944 |
| Olsen | Louis H. | 1176 | History of Humboldt County - 1915 |
| Olsen | Alexander | 1904 | History of South Coast Counties - 1907 |
| Olsen | Benedict | 539 | History of the San Joaquin Valley - 1905 |
| Olsen | Lorenz | 2586 - Vol. II | History of Fresno County - 1919 |
| Olsen | Martin | 1408 | History of Stanislaus County - 1921 |
| Olsen | Martin | 582 | An Illustrated History of Los Angeles County - 1889 |
| Olsen | O. A. | 2520 - Vol. II | History of Fresno County - 1919 |
| Olsen | Peter | 739 | History of the Sierras - 1906 |
| Olsen | Ole J. | 1295 | History of the San Joaquin Valley - 1905 |
| Olsen | Gustav | 2554 - Vol. II | History of Fresno County - 1919 |
| Olsen | Louis | 193 | History of Santa Clara County - 1922 |
| Olsen | A. C. | 713; Vol. III | History of Los Angeles and Environs - 1915 |
| Olsen | Andrew (B) | 1576 | History of Santa Clara County - 1922 |
| Olsen | Charles | 277-278 | History of Butte Co. - 1918 |
| Olsen | Arthur J. | 1153 | History of Yuba and Sutter Counties - 1924 |
| Olsen | O. Peter | 635 | History of Contra Costa - 1926 |
| Olsen | Midnight Capt. | 100-Vol. 2 | Mendocino County Remembered: An Oral History - Vol. 1 & 2 |
| Olsen | William Alvin | 250 | History of Sonoma County - 1937 |
| Olsen Gold Mine | ~ | 175 | History of Stanislaus County - 1881 |
| Olsesen | Thorwald | 94-Vol. 2 | Mendocino County Remembered: An Oral History - Vol. 1 & 2 |
| Olson | Olof | 979 | History of Solano & Napa - 1912 |
| Olson | Carl Edward | 888 | History of Merced County - 1925 |
| Olson | W. J. | 927 | History of Los Angeles Harbor District |
| Olson | Otto | 659 | History of Monterey & San Benito Cos. - 1910 |
| Olson | Gus | 1904 - Vol. II | History of Fresno County - 1919 |
| Olson | George P. | 928 | History of Stanislaus County - 1921 |
| Olson | G. Wendell (M. D.) | Vol. III - 237 | History of Orange County - 1931 |
| Olson | Fritz E. | 778 | History of Merced County - 1925 |
| Olson | Edward W. | 1164 | History of Humboldt County - 1915 |
| Olson | Daniel | 187 | An Illustrated History of Southern California - 1890 |
| Olson | J. (Mrs.) | 178 | History of Stanislaus County - 1881 |
| Olson | O. G. | 1226 | History of Stanislaus County - 1921 |
| Olson | Charles W. | 1156 | History of Orange County - 1921 |
| Olson | Caroline (Mrs.) | 1371 | History of Stanislaus County - 1921 |
| Olson | A. B | 887 | History of Mendoncino & Lake Counties - 1914 |
| Olson | W. B. | S31 | History of Merced County - 1925 |
| Olson | Theodore R. | 635 | History of Stanislaus County - 1921 |
| Olson | Peter | 1238- Vol. I. | History of Fresno County - 1919 |
| Olson | Peter L. | 622 | History of Sacramento County - 1923 |
| Olson | P. N. | 1318 | History of Stanislaus County - 1921 |
| Olson | Oscar H. | 942 | History of Stanislaus County - 1921 |
| Olson | A. B. (Mrs.) | 888 | History of Mendoncino & Lake Counties - 1914 |
| Olson | Abram | 2029 - Vol. II | History of Fresno County - 1919 |
| Olson | Albert Julius | 1124 - Vol. I | History of Fresno County - 1919 |
| Olson | Anthony B. | 293 | History of Kern County - 1914 |
| Olson | Ole | 1329 | History of Stanislaus County - 1921 |
| Olson | Chester | 178 | History of Santa Clara County - 1922 |
| Olson | Margaret | 205 | Pioneer Communities of Porterville, Vandalia and Porterville - 1983 |
| Olson | Fay | 6 #152 6/86 | Los Tulares: 1948 - 11/86 |
| Olson | Gloria | 2 #150 12/85 | Los Tulares: 1948 - 11/86 |
| Olson | Ruth | 4 #14 3/53 | Los Tulares: 1948 - 11/86 |
| Olson | Per | 667 | History of Yuba and Sutter Counties - 1924 |
| Olson | Albert Theodore | 1304 | History of Yuba and Sutter Counties - 1924 |
| Olson | Aaron | 867 | History of Yuba and Sutter Counties - 1924 |
| Olson | John | 1623 | History of San Joaquin Co. - 1923 |
| Olsson | Charles Mrs. | 1 #9 11/51 | Los Tulares: 1948 - 11/86 |
| Olsson | Charles Mrs. | 2 #1 10/48 | Los Tulares: 1948 - 11/86 |
| Olsson | Oscar F. | 688 | History of Contra Costa - 1926 |
| Olsson-Seffer | R. M. (B) | 1461 | History of Santa Clara County - 1922 |
| Olufs | Oluf Bernard | 711-Vol. I | History of Fresno County - 1919 |
| Olund | Eric | 377 | History of San Mateo County - 1938 |
| Oluts | O. B. | 346 | Fresno County: The Pioneer Years to 1900- 1984 |
| Olver | Blanche | 394 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olver | Chas. | 394 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olver | Chas. E. | 394 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olver | Mildred | 394 | Shenandoah Valley Area of Amador Co. - 1854-1904 |
| Olver | Noma | 394 | Shenandoah Valley Area of Amador Co. - 1854-1904 |