The collection consists of two series:

"H.T. Colebrooke - Memoirs and Autographs", A red calf bound book, containing printed and handwritten material including biographical material concerning Colebrooke, obituary notices for Horace Hayman Wilson, and correspondence from Colebrooke to Nathaniel Wallich. On the inside cover there is a bookplate with "Ex Libris Frederick Hendricks, F.S.S., F.S.A., Knight of Vasa. 1893" and a printed auction listing "226. Colebrook (H.T.) Notice historique sure la vie et les ouvrages de M. Colebrooke par M. C.A. Walckenaer, Paris, 1848, with biographical notices from various periodicals and numerous interesting autograph letter of Colebrooke, half red calf". Frederick Hendricks is an ancestor of the donor who also has family connections with the Colebrooke family.

The Papers include correspondence between Thomas Manning and his family, friends and some official correspondence ranging from his childhood, through Cambridge days, time in France, travels to China and India and his later life.These reflect both Manning's interests and the wide range of contacts that he cultivated.

There are also original notebooks and notes, some documenting his travels including his journey through Tibet; others reflecting his interests in mathematics, poetry & riddles and Catholic emancipation. There is also an early Manuscript for "The Journey of Thomas Manning to Lhasa".

Other highlights in the Collection include early English and European passports, calling cards, and later receipts

These Papers give an insight into this unique man formerly best known for his relationship with Charles Lamb. These Papers show that Manning was also a man of talent, charisma and determination in his study of China and the Chinese language.

Obituary notice for Horace Hayman Wilson Esq., from the Times Newspaper, 23 May 1860. Printed material with annotations underlining material in obituary concerning Colebrooke.