| O'Brien, Mary | Nalyaring VII | Head Teacher | 1924 |
| O'Brien, Mary | Rockvale VII | H.T.on S | 1924 |
| O'Brien, Mary | Guildford ITT. | Monitor | 1929 |
| O'Brien, Mary | Midland Junction 1A. | Assistant Teacher | 1929 |
| O'Brien, Mary | Rockvale VII. | Head Teacher on Supply | 1929 |
| O'Brien, Mary | Midland Junction IA. | Assistant Teacher | 1930 |
| O'Brien, Mary | Rockvale VII. | Head Teacher on Supply | 1930 |
| O'Brien, Mary | Bayswater II. | Assistant Teacher | 1933 |
| O'Brien, Mary | Buckingham VI. | Monitor and Sewing Mistress | 1933 |
| O'Brien, Mary | Kockatea VI | Sewing Mistress | 1935 |
| O'Brien, Mary | Lake Grace North VII | Head Teacher on Probation | 1935 |
| O'Brien, Mary | Kockatea VII | Sewing Mistress | 1936 |
| O'Brien, Mary | Lake Grace North VII | Head Teacher | 1936 |
| O'Brien, Mary | Stratherne VII | Head Teacher on Supply | 1936 |
| O'Brien, Mary | Korrelocking North VII | Head Teacher on Supply | 1937 |
| O'Brien, Mary | Lake Grace North VII | Head Teacher | 1937 |
| O'Brien, Mary | KulinEast VII | Head Teacher on Supply | 1938 |
| O'Brien, Mary | Cunjardine VII | Head Teacher on Supply | 1939 |
| O'Brien, Mary | Cunjardine VII | Head Teacher on Supply | 1940 |
| O'Brien, Mary | Koogan VII | Head Teacher | 1941 |
| O'Brien, Mary | Mt. Hardy VII | Head Teacher on Supply | 1941 |
| O'Brien, Mary | Mt. Hardy Reg 4 | Head Teacher | 1945 |
| O'Brien, Mary | Wicherina VII | Head Teacher on Supply | 1946 |
| O'Brien, Mary A. | Lake Guelup V | Assistant Teacher on Probation | 1935 |
| O'Brien, Mary A. | Lake Guelup V | Assistant Teacher | 1937 |
| O'Brien, Mary a. | Lake Guelup V | Assistant Teacher | 1938 |
| O'Brien, Mary A. | Midland Junction Perth Boys IA | Assistant Teacher | 1939 |
| O'Brien, Mary A. | Midland Junction Perth Boys IA | A. (p.p.) | 1940 |
| O'Brien, Mary A. | Midland Junction IA | A. (P.P.) | 1941 |
| O'Brien, Mary A. | Midland Junction IA | A. (P.P.) | 1942 |
| O'Brien, Mary E. | Stratherne VII. | Head Teacher on Supply | 1933 |
| O'Brien, Mary E. | Stratherne VII | Head Teacher on Supply | 1935 |
| O'Brien, Mary E. F. C. | Mount Magnet VI | Monitor on Supply and Sewing Mistress | 1905 |
| O'Brien, Mary Jan | West Kambalda Primary School | Mistress (Teacher) | 1978 |
| O'Brien, Mary Jan | West Kambalda Primary School | Mistress (Teacher) | 1979 |
| O'Brien, Mary Jan | Weat Kambalda Primary School | Mistress (Teacher) | 1980 |
| O'Brien, Mary K. | Corondeen VII | Head Teacher | 1938 |
| O'Brien, Mary K. | Corondeen VII | Head Teacher | 1939 |
| O'Brien, Mary K. | Corondeen VII | Head Teacher | 1940 |
| O'Brien, Mary V. | Mia Moon | Head Teacher on Supply | 1945 |
| O'Brien, Maureen | Kalgoorlie South Primary School I | Mistress (Teacher) on Probation | 1962 |
| O'Brien, Maureen | South Kalgoorlie Primary School I | Mistress (Teacher) on Probation | 1963 |
| O'Brien, Maureen | Onslow Primary School III | Mistress (Teacher) | 1964 |
| O'Brien, May Lorna | Nollamara Primary School | Mistress (Teacher) | 1972 |
| O'Brien, May Lorna | Nollamara Primary School | | 1973 |
| O'Brien, May Lorna | Nollamara Primary School IA | Mistress (Teacher) | 1975 |
| O'Brien, May Lorna | Nollamara Primary School IA | Mistress (Teacher) | 1976 |
| O'Brien, May Lorna | Nollamara Primary School | Mistress (Teacher) | 1977 |
| O'Brien, May Lorna | Aboriginal Education Branch | Mistress (Teacher) S/Duty | 1979 |
| O'Brien, Megan Patricia | Baldivis Primary School | Mistress (Teacher) | 1977 |
