- FondsJeffreys - Papers and correspondence of Sir Harold Jeffreys
- SeriesG1-G190 - Correspondence
- SubseriesG1-G129 - Scientific Correspondence
- FileG1-G3 - Anderson, D.L.
- FileG1 - Includes manuscript draft letters by Jeffreys
- FileG2 - Correspondence between Anderson and Lady Jeffreys
- ItemG3 - Letter from Anderson to Lady Jeffreys