- FondsLarmor - Papers of Sir Joseph Larmor
- SeriesLetters - Letters to and from Larmor
- SubseriesTo Larmor - Letters to Larmor
- FileBonney (Misc) - Letters from Thomas George Bonney
- ItemBO1/3 - Autograph letter, signed, from Hampstead
- ItemBO1/4 - Autograph letter, signed, from Cambridge
- ItemBO1/5 - Autograph letter, signed, from Cambridge