- FondsLarmor - Papers of Sir Joseph Larmor
- SeriesLetters - Letters to and from Larmor
- SubseriesTo Larmor - Letters to Larmor
- FileMacMahon (Misc) - Letters from Percy Alexander MacMahon
- ItemMA6/1 - Autograph letter, signed, from London
- ItemMA6/2 - Autograph letter, signed, from London
- ItemMA6/3 - Autograph letter, signed, from London
- ItemMA6/4 - Autograph letter, signed, from London
- ItemMA6/5 - Autograph letter, signed, from London
- 2 more...