- Series592 - Records of the Commonwealth Solar Observatory (Mt Stromlo) and Duffield Family
- 105 more...
- Item106 - Photographs of turning of first sod for new Duffield Building
- Item107 - Framed photograph of Mount Stromlo Observatory
- Item108 - Letter from Admiralty House to Mrs DT Duffield regarding unveiling of plaque for WG Duffield at St John's Church, Canberra
- Item109 - Letter from Archdeacon of Canberra to Mrs Duffield regarding donation to repair organ at St John's Church, Canberra
- Item110 - Notes for speech given by Joan Duffield at opening of new Duffield Building
- Item111 - Letter to Mr O'Connor from Joan Duffield regarding financial contributions to Mt Stromlo for construction of heliostat
- Item112 - Letter to Joan Duffield from Reverend Dr TR Frame regarding history of Mt Stromlo and burial of WG Duffield
- Item113 - Photographs of 100th birthday celebration for Joan Duffield at Mt Stromlo
- Item114 - Mt Stromlo oral history project interview with Joan Duffield
- 78 more...
