- FondsLarmor - Papers of Sir Joseph Larmor
- SeriesLetters - Letters to and from Larmor
- SubseriesTo Larmor - Letters to Larmor
- FileMathews (Misc) - Letters from George Ballard Mathews
- ItemMA14/4 - Autograph letter, signed, from Upper Bangor
- ItemMA14/5 - Autograph letter, signed, from Upper Bangor
- ItemMA14/6 - Autograph letter, signed, from Worthing
- ItemMA14/7 - Autograph letter, signed, from Upper Bangor
- ItemMA14/8 - Autograph letter, signed, from Upper Bangor
- ItemMA14/9 - Autograph letter, signed, from Upper Bangor
- ItemMA14/10 - Autograph letter, signed, from Upper Bangor
- ItemMA14/11 - Autograph letter, signed, from Upper Bangor
- ItemMA14/12 - Autograph letter, signed, from Upper Bangor