- Series592 - Records of the Commonwealth Solar Observatory (Mt Stromlo) and Duffield Family
- 110 more...
- 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
- Item115 - Television news report on Mt Stromlo
- Item116 - Notes from interview with Joan Duffield by nephew Andrew Duffield and Duffield Family history
- Item117 - Notebook belonging to Joan Duffield
- Item118 - Correspondence between Joan Duffield and Ken Munton
- Item119 - Letter to Joan Duffield from Faye Mason regarding grave of WG Duffield at Mt Stromlo
- 73 more...
