- FondsJeffreysB - Papers of Bertha Jeffreys
- SeriesA - Biographical
- SubseriesA94-A186 - Life of Sir Harold Jeffreys
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- FileA178-A180 - 'Cambridge Professors and the Observatories' by Jeffreys, The Observatory vol 116 (1996)
- FileA181 - Correspondence
- FileA182 - Newspaper cuttings of reports on meetings on 'Evolution of the Universe' and 'The Neutron'
- FileA183 - Proof of chapter 'Seismology' by Harold Jeffreys, with manuscript corrections
- FileA184 - Correspondence re reprinting of The Theory of Probability
- FileA185 - Foreword to the history of the Royal Astronomical Society 1920-1980
- FileA186 - Correspondence re 6th edition of The Earth