| Period of LegCo service |
| 17 October 1973 - 4 August 1976 |
Appointed (Official - Secretary for the Environment) |
| 6 June 1973 - 4 July 1973 |
Appointed (Official - Acting Secretary for the Environment) |
| 9 April 1969 - 1 August 1973 |
Appointed (Official - Director of Public Works) |
| 10 August 1966 - 12 October 1966 |
Appointed (Official - Acting Director of Public Works) |
| 8 April 1964 - 30 September 1964 |
Appointed (Official - Acting Director of Public Works) |