- FondsClarkson - Papers of Thomas Clarkson
- SeriesFolder 7 - Clarkson Family
- ItemDoc 178 - Autograph letter, signed, to C. Buck (Catherine Clarkson), from Sarah Jane Maling, from Lavenham
- ItemDoc 178a - Autograph letter, signed, from John Clarkson to 'William'
- ItemDoc 179 - Autograph letter, signed, from Thomas Clarkson, to Robert Southey, Keswick, from Bury [St Edmunds]
- ItemDoc 180 - Autograph letter, signed, from Thomas Clarkson, to Robert Southey, Keswick, from Bury [St Edmunds]
- ItemDoc 181 - Autograph letter, signed, to Thomas Clarkson, from Lord Holland
- ItemDoc 182 - Autograph letter, signed, from Thomas Clarkson to Robert Southey, Keswick, from Playford Hall
- 6 more...