| O'Brien, Wm. R. | Dongara VI | Head Teacher | 1910 |
| O'Brien, Wm. R. | Grass Valley VII | Head Teacher | 1920 |
| O'Briend, Sarah | Leederville West II | Assistant Teacher | 1908 |
| O'Bryne, Florance | Bentley Senior High School | Mistress (Teacher) | 1973 |
| O'Bryne, Ilma | Quairading V | Assistant Teacher on Probation | 1945 |
| O'Byrne, Florence | Bentley Sernior High School | Temporary Mistress (Teacher) | 1969 |
| O'Byrne, Florence | Bentley Senior High School | MI./T. 3/5 | 1970 |
| O'Byrne, Florence | Bentley Senior High School | Mistress (Teacher) | 1971 |
| O'Byrne, Florence | Bentley Senior High School | Mistress (Teacher) | 1972 |
| O'Byrne, Ilma | Quairading IV | Assistant Teacher on Probation | 1946 |
| O'Byrne, Ilma | Quairading IV | Assistant Teacher | 1947 |
| O'Byrne, Ilma | Quairading IV | Assistant Teacher | 1948 |
| O'Byrne, Ilma | Quairading IV | Assistant Teacher on Probation | 1949 |
| O'Byrne, Ilma | South Terrace Junior High School II | Assistant Teacher | 1952 |
| O'Byrne, Ilma | South Terrace Primary School | Assistant Teacher | 1953 |
| O'Byrne, John | Mangowine VII | Head Teacher on Supply | 1935 |
| O'Byrne, Uma | Quairading High School III | Assistant Teacher | 1951 |
| O'Callaghan, Anne | Collie Garden Asstd. | Head Teacher | 1935 |
| O'Callaghan, Bernice | Leonora VI | M. and S.M. | 1935 |
| O'Callaghan, Bernice | Mears VII | Head Teacher on Probation | 1936 |
| O'Callaghan, Bernice | Mears VII | Head Teacher on Probation | 1937 |
| O'Callaghan, Bernice | Mears VII | Head Teacher | 1938 |
| O'Callaghan, Bernice | Mears VII | Head Teacher | 1939 |
| O'Callaghan, Bernice | Augusta VII | Head Teacher | 1940 |
| O'Callaghan, Bernice | Augusta Primary School VII | Head Teacher | 1941 |
| O'Callaghan, Bernice | Augusta VII | Head Teacher | 1942 |
| O'Callaghan, Bernice | Augusta VII | Head Teacher | 1943 |
| O'Callaghan, Dennis | Leederville Primary School I | Master (Teacher) on Probation | 1962 |
| O'Callaghan, Dennis | West Leederville Primary School I | Master (Teacher) on Probation | 1963 |
| O'Callaghan, Dennis | Albany Senior High School | Master (Teacher) | 1964 |
| O'Callaghan, Dennis | Albany Senior High School | Master (Teacher) | 1965 |
| O'Callaghan, Dennis | Albany Senior High School | Master (Teacher) | 1966 |
| O'Callaghan, Dennis | Albany Senior High School | Master (Teacher) | 1968 |
| O'Callaghan, Dennis | Albany Senior High School | Master (Teacher) | 1969 |
| O'Callaghan, Dennis | South Fremantle High School | Master (Teacher) | 1971 |
| O'Callaghan, Dennis | South Fremantle Senior High School | Master (Teacher) | 1972 |
| O'Callaghan, Dennis | South Fremantle Senior High School | Master (Teacher) | 1973 |
| O'Callaghan, Dennis | Lynwood High School | Master (Teacher) | 1975 |
| O'Callaghan, Dennis | Lynwood High School | Master (Teacher) | 1976 |
| O'Callaghan, Dennis | BuSSelton Senior High School | Master (Teacher) | 1978 |
| O'Callaghan, Dennis | Margaret River Primary School | Sen. ASSIST. | 1979 |
| O'Callaghan, Dennis | Booragoon Primary School | Sen. ASSIST. | 1980 |
| O'Callaghan, Elanor | Benger High School | Head Teacher on Supply | 1952 |
| O'Callaghan, Eleanor | Denmark Agricultural Junior High School | MI.S. | 1954 |
| O'Callaghan, Eleanor | Harvey Junior High School | Mistress (Teacher) on Supply | 1955 |
| O'Callaghan, Eleanor | Harvey Agricultural Junior High School | Mistress (Teacher) on Supply | 1957 |
| O'Callaghan, Elizabeth Marjory | Scarborough Senior High School | Mistress (Teacher) | 1972 |
| O'Callaghan, Elizabeth Marjory | Scarborough Senior High School | Mistress (Teacher) | 1973 |
| O'Callaghan, Elizabeth Marjory | Unattached Secondary Education Div. | Mistress (Teacher) | 1975 |
| O'Callaghan, Elizabeth Marjory | Unattached | Mistress (Teacher) | 1976 |
