| Sinclair, Marlene | Geraldton Senior High School | Temporary Mistress (Teacher) on Probation | 1960 |
| Sinclair, Maud | Cottesloe Infants III | Assistant Teacher | 1917 |
| Sinclair, Maud | Cottesloe Infants IV | Assistant Teacher | 1918 |
| Sinclair, Maud | Cottesloe Infants IV. | Assistant Teacher | 1919 |
| Sinclair, Maud | Thomas Street Infants II | Assistant Teacher | 1920 |
| Sinclair, Maud | Victoria Park East Infants I. | Assistant Teacher | 1931 |
| Sinclair, Maude | Perth East Infants IV | Assistant Teacher | 1915 |
| Sinclair, Maude | Thomas Street Infants II | Assistant Teacher | 1921 |
| Sinclair, Maude | Thomas Street Infants II | Assistant Teacher | 1922 |
| Sinclair, Maude | Thomas St. Infants II | Assistant Teacher | 1923 |
| Sinclair, Maude | Thomas St Infants II | Assistant Teacher | 1924 |
| Sinclair, Maude | Thomas Street Infants II | Assistant Teacher | 1925 |
| Sinclair, Maude | Thomas St. Infants II | Assistant Teacher | 1926 |
| Sinclair, Maude | Thomas Street Infants II | Assistant Teacher | 1927 |
| Sinclair, Maude | Thomas Street Infants II | Assistant Teacher | 1928 |
| Sinclair, Maude | Thomas Street Infants' II. | Assistant Teacher | 1929 |
| Sinclair, Maude | Thomas Street Infants' III. | Assistant Teacher | 1930 |
| Sinclair, Maude | Victoria Park, East Infants` II. | Assistant Teacher | 1931 |
| Sinclair, Neil | Yerbillion VII | Head Teacher on Probation | 1928 |
| Sinclair, Neil | Yerbillon VII. | Head Teacher on Probation | 1929 |
| Sinclair, Neil | Yerbillon VII. | Head Teacher | 1930 |
| Sinclair, Neil | Kokatea VII. | Head Teacher | 1931 |
| Sinclair, Neil | Kockatea VII. | Head Teacher | 1931 |
| Sinclair, Neil | Kockatea VII. | Head Teacher | 1933 |
| Sinclair, Neil | Smiths Brook VI | H.T. | 1938 |
| Sinclair, Neil | Midland Junction IA | Temporary Assistant Teacher | 1944 |
| Sinclair, Neil | Dalwallinu V | Head Teacher | 1945 |
| Sinclair, Neil | Dalwallinu V | Head Teacher | 1946 |
| Sinclair, Neil | Dalwallinu IV | Temporary Head Teacher | 1947 |
| Sinclair, Neil | Dalwallinu IV | Head Teacher | 1948 |
| Sinclair, Neil | Dalwallinu IV | Head Teacher | 1949 |
| Sinclair, Neil | Quairading High School IV | Head Teacher | 1950 |
| Sinclair, Neil | Waroona High School IV | Head Teacher | 1951 |
| Sinclair, Neil | Waroona IV Junior High School | Head Teacher | 1952 |
| Sinclair, Neil | Waroona Primary School IV | Head Teacher | 1953 |
| Sinclair, Neil | Serpentine III | Headmaster | 1954 |
| Sinclair, Neil | Serpentine Primary School III | Headmaster | 1955 |
| Sinclair, Neil | Serpentine Primary School | Headmaster | 1956 |
| Sinclair, Neil | Boulder Primary - Class I | Temporary Headmaster | 1958 |
| Sinclair, Neil | Armadale Primary School | Headmaster | 1959 |
| Sinclair, Neil | Armadale Primary School I | Headmaster | 1960 |
| Sinclair, Neil | Kensington Primary School I | Headmaster | 1963 |
| Sinclair, Neil | Kensington Primary School I | Headmaster | 1964 |
| Sinclair, Neil | Kensington Senior High School | Headmaster | 1966 |
| Sinclair, Neil | Kensington Primary School | Headmaster | 1967 |
| Sinclair, Neil M. | Armadale Primary School I | Headmaster | 1961 |
| Sinclair, Neil M. | Kensington Primary School | Headmaster | 1968 |
| Sinclair, Neil M. | Kensington Primary School | Headmaster | 1969 |
| Sinclair, Neil M. | Kensington Primary School | Headmaster | 1970 |
| Sinclair, Neill | Naraling VI | Head Teacher | 1934 |
