- FondsLarmor - Papers of Sir Joseph Larmor
- SeriesLetters - Letters to and from Larmor
- SubseriesTo Larmor - Letters to Larmor
- FileHayward (Misc) - Letters from Robert Baldwin Hayward
- ItemHA10/1 - Autograph letter, signed, from Harrow
- ItemHA10/2 - Autograph letter, signed, from Harrow
- ItemHA10/3 - Autograph letter, signed, from Harrow
- ItemHA10/4 - Autograph letter, signed, from Harrow
- ItemHA10/5 - Autograph letter, signed, from Harrow
- ItemHA10/6 - Autograph letter, signed, from Harrow
- ItemHA10/7 - Autograph letter, signed, from Harrow
- ItemHA10/8 - Autograph letter, signed, from Harrow
- ItemHA10/9 - Autograph letter, signed, from Vosges, France