- FondsBeaton - Papers of Sir Cecil Beaton
- SeriesA - Correspondence
- SubseriesA1 - General letters to Beaton
- File137 - Lady Diana Olivia Winifred Maud Cooper. Letters and postcards to Beaton.
- 36 more...
- Item37 - Autograph letter signed to Beaton, from Salisbury
- Item38 - Autograph letter to Beaton, from Bognor
- Item39 - Autograph letter signed to Beaton, from Vineuil
- Item40 - Autograph letter signed to Beaton, from Paris
- Item41 - Autograph letter signed to Beaton.
- Item42 - Autograph letter signed to Beaton, from London
- Item43 - Autograph letter signed to Beaton, from Beirut
- Item44 - Autograph postcard to Beaton, from Paddington
- Item45 - Autograph postcard signed to Beaton, from Rome