- FondsJeffreysB - Papers of Bertha Jeffreys
- SeriesG - Mathematical Association
- FileG10-G11 - Annual Conference, Cambridge, 1-4 April 1970
- ItemG10 - Conference programme; annotated minutes of 1969 Conference; offprint of Jeffreys's lecture
- ItemG11 - Correspondence and papers found in envelope inscribed 'Conference'