| Last Name | First Name | Middle | Position | Location | Start | End | Born | Born at | Died | Citizen | File | Comments                    | Beneficiary                 | Nickname | 
| O'CAMPO | DOROTHY | 
 | TICKET CLERK | CITY TICKET OFFICE | 
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| O'CONNELL | THOMAS | F | MASTER MECHANIC | SAN DIEGO | 1922 | 
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| O'CONNOR | FRANCIS | WARREN | HELPER | B & B 3 | 03-05-1945 | 
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| O'LANEY | PETER | E | WATCHMAN | 
 | 1934 | 1938 | 03-17-1889 | 
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| O'LEARY | JOHN | M | SWITCHMAN | 
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 | 07-00-1969 | 
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| O'NEAL | CURTIS | 
 | FOREMAN | SEC 16, SEC 6, SEC 7 | 07-17-1941 | 06-02-1942 | 
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 | SEC 16 2-17-42,SEC 6 2-28-42,SEC 7 3-26-42, QUIT 6-2-42 | 
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| O'NEILL | JEAN | MELLOR | TICKET CLERK - STENO | CITY TICKET OFFICE | 10-03-1951 | 07-25-1952 | 08-23-1923 | ST. LOUIS, MISSOURI | 
 | USA | F-1109-4 | SEE PERSONEL FILE | 
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| OAKE | NATHAN | R | CONDUCTOR | MIXED MTN | 07-01-1928 | 
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 | FOUND IN TRAINMAN & ENGINEMEN TIMESLIPS AUGUST 20, 1928 | 
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| OAKS | 
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 | CONDUCTOR | MOUNTAIN DISTRICT | 07-21-1928 | 
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 | FOUND IN TRAINMAN & ENGINEMAN TIMESLIPS 7/1928 | 
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| OBARR | WILHELMINE | C | STENO-CLERK | CITY TICKET OFFICE | 09-24-1945 | 12-15-1945 | 09-21-1913 | MANHATTAN, NEVADA | 
 | USA | F-1109-4 | SEE PERSONEL FILE | 
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| OCHOA | SALVADOR | 
 | LABORER | SECTION 1 | 04-01-1927 | 04-30-1927 | 
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 | QUIT 04-30-1927 | 
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| OCHOA | YGNACIO | 
 | LABORER | SECTION 7 | 
 | 05-22-1946 | 
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| OCHOA-CHAVEZ | JULIAN | 
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 | SECTION 16 | 12-08-1944 | 02-15-1946 | 
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| OCHOA-REYES | ANTONIO | 
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 | SECTION 10 | 12-08-1944 | 12-07-1945 | 
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| ODLE | JIM | 
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 | SECTION 9 | 10-20-1931 | 04-20-1932 | 
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 | LAID OFF 04-20-1932 | 
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| OFTELIE | JOHN | GILBERT | RELIEF PATROLMAN | 
 | 1936 | 1937 | 06-07-1915 | EL CENTRO, CALIFORNIA | 
 | USA | 
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| OGLETREE | FLOYD | 
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 | 08-31-1942 | 09-03-1942 | 
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| OHLSON | GUS | ANTONIUS | CLAIM CLERK, CHECKER | CITY TICKET OFFICE | 12-29-1919 | 1936 | 04-20-1890 | DENVER, COLORADO | 
 | USA | F-1109-4 | SEE PERSONEL FILE | 
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| OJEDA | SIMON | D | LABORER | EXTRA GANG 1 | 06-21-1926 | 10-02-1926 | 
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 | RESIGNED 10-02-1926 | 
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| OLANEY | PETE | 
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 | 08-00-1939 | 
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| OLIVARES | AURELIO | HERNANDEZ | 
 | EXTRA GANG 1, SECTION 9 | 12-27-1943 | 12-13-1944 | 
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 | MEXICO | 
 | RETURNED TO MEXICO DEC 1944 | 
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| OLIVARRIA | LADISLAO | V | 
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 | 03-27-1939 | 05-03-1941 | 
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 | OUT OF SERVICE 05-03-1941 | 
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| OLIVER | WILLIAMS | H | CARPENTER | B & B | 04-15-1943 | 08-31-1944 | 
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 | LEFT 08-31-1944 | 
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| OLSON | HENRY | OLE | HELPER | B & B 2 | 02-15-1927 | 06-04-1927 | 
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| OLSON | RODOLPH | A | RELIEF PATROLMAN | 
 | 05-02-1945 | 05-27-1945 | 
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 | LAST DAY 27TH | 
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| OLVERA | EMELIO | 
 | LABORER | SECTION 6 HIPASS | 08-25-1925 | 11-03-1925 | 
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 | OUT OF SERVICE 11-03-1925 | 
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| ONSTAD | ALVIN | E | ACCOUNTING CLERK | 
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 | 1917 | 
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| ORENDAIN | MANUEL | 
 | LABORER | SECTION 6 | 03-15-1927 | 08-22-1928 | 
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 | DISCHARGED 08-22-1928 | 
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| ORMAU | PERCY | 
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 | SECTION 10 | 03-02-1931 | 04-20-1932 | 
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 | LAID OFF 04-20-1932 | 
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| ORNELAS | CLEMENTE | E | LABORER | EXTRA GANG 2, SECTION 7 | 01-01-1944 | 
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 | SECTION 7 2-22-1944, LEFT | 
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| ORNELAS | LUIS | 
 | LABORER | SECTION 8 DOS CABEZAS | 08-28-1925 | 10-12-1925 | 
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 | OUT OF SERVICE 10-12-1925 | 
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| ORNELAS | MARCELINO | G | LABORER | EXTRA GANG | 
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| ORNELAS-GARCIA | RAMON | 
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 | EXTRA GANG 2, SECTION 1 | 01-23-1945 | 10-25-1945 | 
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 | TO SECTION 1 09-01-1945 | 
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| ORNER | HAROLD | S | ASST. DISTRICT PASSENGER AGENT 
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 | 11-00-1944 | 
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 | SP BULLETIN NOV 1944 PG 28 | 
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| ORONA | S | I | 
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 | 1936 | 1937 | 04-06-1888 | EL PASO, TEXAS | 
 | USA | 
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| OROPEZA | JUAN | 
 | LABORER | EXTRA GANG 1 | 01-04-1947 | 
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| OROS | PEDRO | O | LABORER | SECTION 7 | 12-13-1945 | 12-20-1945 | 
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 | PICKED UP BY IMMIGRATION 12-20-1945 | 
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| OROSCO | ALBERT | 
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 | SECTION 17 | 1936 | 1937 | 07-30-1909 | DOME, ARIZONA | 
 | USA | 
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| OROSCO | ALBERTO | 
 | TRACKWALKER | SECTION 17 NATIONAL CITY | 11-15-1909 | 11-11-1930 | 
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 | 11-11-1930 | 
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| OROSCO | ALBERTO | JR | LABORER | SECTION 17 NATIONAL CITY | 07-23-1924 | 10-15-1937 | 
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 | QUIT 7-31-1931, QUIT 10-15-1937 | 
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| OROSCO | ANGEL | 
 | LABORER | SECTION 15,SAN DIEGO YARD GANG | 12-29-1925 | 02-19-1927 | 
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 | QUIT 02-19-1927 | 
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| OROSCO | FRANK | 
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 | SECTION 17 | 11-16-1930 | 08-15-1931 | 
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 | QUIT 08-15-1931 | 
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| OROSCO | JAVIER | 
 | LABORER | EXTRA GANG 1 | 
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| OROSCO | SANTIAGO | 
 | LABORER | EXTRA GANG 1 | 06-21-1926 | 11-16-1926 | 
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 | QUIT 11-16-1926 DEPORTED BY IMMIGRATION MEN | 
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| OROSCO-FLORES | SILVESTRE | 
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 | EXTRA GANG 1 | 08-15-1945 | 02-14-1946 | 
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| OROZCAO | ALEJANDRO | 
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 | 1937 | 
 | 04-24-1897 | MINILLAS, MEXICO | 
 | MEXICO | 
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| OROZCO ? | ALEJANDRO | 
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 | EXTRA GANG 1 | 11-16-1931 | 02-01-1935 | 
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| ORRANTIA | JOAQUIN | A | 
 | SECTION 18 | 03-28-1941 | 04-03-1941 | 
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| ORTEGA | ANDRAS | 
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 | SECTION 5 | 10-26-1931 | 04-20-1932 | 
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 | LAID OFF 4-20-1932 | 
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| ORTEGA | CARMEN | 
 | LABORER | SECTION 9 | 10-09-1944 | 
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| ORTEGA | FRANCISCO | C | LABORER | SECTION 17 | 
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| ORTEGA | MATILDE | 
 | LABORER | SECTION 7 | 09-29-1926 | 12-11-1926 | 
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 | START DATE TYPED ON CARD 9/29 62, QUIT 12-11-26 | 
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| ORTEGA | WILLEBALDO | 
 | LABORER | SECTION 7 | 09-29-1926 | 12-11-1926 | 
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 | QUIT 12-11-1926 | 
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| ORTIZ | EDWARD | 
 | LABORER | SECTION 6 | 
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 | LEFT | 
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| ORTIZ | GREGORIO | 
 | LABORER | SECTION 7 JACUMBA | 02-18-1944 | 
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| ORTIZ | JESSE | 
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 | SECTION 16 | 1937 | 
 | 08-26-1917 | 
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 | USA | 
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 | JOHN ORTIZ | 
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| ORTIZ | JESUS | CHAVEZ | 
 | SECTION 5, SECTION 16 | 12-27-1943 | 02-15-1946 | 
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| ORTIZ | JESUS | L | LABORER | SAN DIEGO YARD | 01-07-1944 | 
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| ORTIZ | LUIS | 
 | LABORER | SAN DIEGO YARD | 09-01-1927 | 03-08-1928 | 
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 | OUT OF SERVICE 03-08-1928 | 
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| ORTIZ | NARCISSO | 
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 | 1937 | 
 | 11-26-1915 | SAN DIEGO, CALIFORNIA | 
 | USA | 
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| ORTIZ | ROSAURO | 
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 | SECTION 10 | 01-07-1930 | 06-30-1930 | 
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 | QUIT 06-30-1930 | 
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| ORTIZ | TIBURCIO | A | 
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| ORTIZ-CAMPOS | SANTOS | 
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 | EXTRA GANG 2 | 01-23-1945 | 05-16-1945 | 
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| ORTIZ-RAMOS | ALBINO | 
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 | EXTRA GANG 2 | 01-23-1945 | 07-17-1945 | 
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| OSBORN | JUAN | 
 | LABORER | EXTRA GANG 1 | 
 | 06-20-1944 | 
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 | LEFT 06-20-1944 | 
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| OSBORNE | LLOYD | E | HELPER,FIREMAN, ENGINEER | 
 | 1934 | 1938 | 07-20-1905 | 
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 | SENIORITY, ENGINEER 6-12-1944, FIREMAN 6-11-1941 | 
 | WALKY TALKY, SILVER TIP | 
| OSTIOS | RAFAEL | 
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 | EXTRA GANG | 06-18-1941 | 06-23-1941 | 
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 | DISCHARGED 6-23-1941, REJECTED AC HERNIA | 
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| OTIS | MARY | V | CLERK | ACCOUNTING DEPT | 10-05-1920 | 
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 | MISS | 
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| OWNES | EMMETT | 
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 | SECTION 10, SEELEY | 1936 | 1937 | 12-25-1900 | CLALVERT, TEXAS | 
 | USA | 
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| OYER | LEWIS | W | BRAKEMAN, CONDUCTOR | MOUNTAIN DISTRICT | 07-03-1928 | 
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 | FOUND IN TRAINMAN & ENGINEMEN TIMESLIPS AUGUST 18, 1928 | 
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| OYOS | ALFRED | A | 
 | EXTRA GANG | 04-02-1941 | 04-18-1941 | 
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 | QUIT 04-18-1941 | 
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| OZORNIO | FRANCISCO | 
 | LABORER | OPERATING AND STORE | 09-12-1928 | 
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