- FondsBeaton - Papers of Sir Cecil Beaton
- SeriesA - Correspondence
- SubseriesA1 - General letters to Beaton
- File189 - Esther Morgan Foster. Letters and cards to Beaton.
- Item1 - Autograph letter signed to Beaton, from King's College Cambridge
- Item2 - Autograph letter signed to Beaton, from King's College Cambridge
- Item3 - Autograph card signed to Beaton's secretary, from King's College Cambridge.
- Item4 - Autograph postcard signed to Beaton, from King's College Cambridge