- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesA1-A230 - Biographical Papers
- SubseriesA34-A117 - Career, Honours and Awards
- FileA36-A65 - St John's College Cambridge
- 2 more...
- FileA55-A56 - 'Letters from Johnians circa 1917'
- FileA60-A63 - Concert programmes
- ItemA64 - Menu card
- ItemA65 - 'Mathematicians of St John's. 1913'