| Colgan, Kate | Eastern High Goldfields II | S.A. | 1926 |
| Colgan, Kate | Eastern Goldfields High II | 1st F.A. and S.A. | 1927 |
| Colgan, Kate | Eastern Goldfields High III | 1st F.A. and S.A. | 1928 |
| Colgan, Kate | Eastern Goldfields High II. | 1st FA. and SA. | 1929 |
| Colgan, Mary | Boulder IA | Monitor on Probation | 1936 |
| Colgan, Mary | Subiaco I | Assistant Teacher on Probation | 1938 |
| Colgan, Mary | Subiaco (Practice) I | Assistant Teacher on Probation | 1939 |
| Colgan, Mary | Subiaco I | Assistant Teacher | 1940 |
| Colgan, Mary | Subiaco I | Assistant Teacher | 1941 |
| Colgan, Phyllis | Carnarvon Primary School | MI/I | 1968 |
| Colgan, Richard | Boulder I. | Assistant Teacher on Probation | 1933 |
| Colgan, Richard | Boulder IA | Assistant Teacher on Probation | 1934 |
| Colgan, Richard | Boulder IA | Assistant Teacher | 1935 |
| Colgan, Richard | Boulder IA | Assistant Teacher | 1936 |
| Colgan, Richard | Boulder IA | T 1st A. | 1937 |
| Colgan, Richard | Bunbury High II | Assistant Teacher | 1938 |
| Colgan, Richard | Bunbury II | S.A. | 1939 |
| Colgan, Richard | Bunbury II | S.A. | 1940 |
| Colgan, Richard | Bunbury High II | S.A. | 1941 |
| Colgan, Richard | Bunbury High II | S.A. | 1942 |
| Colgan, Richard | Bunbury High II | S.A. | 1943 |
| Colgan, Richard | Bunbury High II | S.A. | 1944 |
| Colgan, Richard | Bunbury High II | S.A. | 1945 |
| Colgan, Richard | Bunbury High II | S.A. | 1946 |
| Colgan, Richard | Albany High II | S.A. | 1947 |
| Colgan, Richard | Collie High III | 1st Assistant Teacher | 1948 |
| Colgan, Richard | Forrest High III | 1st Assistant Teacher | 1949 |
| Colgan, Richard | Kent Street High School II | 1st Assistant Teacher | 1950 |
| Colgan, Richard | Kent Street High School II | 1st Assistant Teacher | 1951 |
| Colgan, Richard | Kent Street High School II | A./C. | 1952 |
| Colgan, Richard | Teachers College | Lecturer | 1953 |
| Colgan, Richard | Teachers College | Lecturer 1 | 1954 |
| Colgan, Richard | Kent St. High School High School | Temporary Deputy Headmaster | 1955 |
| Colgan, Richard | Kent Street High School | Relieving Headmaster | 1956 |
| Colgan, Richard | Kent Street High School | Deputy Headmaster | 1957 |
| Colgan, Richard | Kent Street High School | Deputy Headmaster | 1958 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal | 1959 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal | 1960 |
| Colgan, Richard | Kent Street High School | Deputy Principal | 1961 |
| Colgan, Richard | Kent Street Senior High School I | Deputy Principal | 1962 |
| Colgan, Richard | Kent street High School | Deputy Principal | 1963 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal | 1964 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal | 1965 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal | 1966 |
| Colgan, Richard | Kent Street Senior High School | Deputy Principal I. | 1967 |
| Colgan, Richard R. | Kent Street Senior High School | Deputy Principal I | 1968 |
| Colgan, Richard R. | Kent Street Senior High School | D Princ I | 1969 |
| Colgan, Richard R. | Kent Street Senior High School | Deputy Principal I | 1970 |
| Colgan, Richard Raymond | Thornlie High School | Principal | 1971 |
| Colgan, Richard Raymond | Thornlie Senior High School | Principal | 1972 |
