The correspondence in this sub-series consists of letters from two of Hamilton's oldest friends, Anna Maria and Caterina Clarke. The Clarkes, originally from Northampton, nursed Hamilton's mother whilst Hamilton was in London. The two sisters set up home with Hamilton in Clarges Street, London, after she left Court. Caterina Clarke later married John Jackson and the correspondence in HAM/1/10/2 consists of the Jackson family. The correspondence relates to Hamilton's mother, friends and acquaintances, literature and music. The correspondence also relates to Hamilton's marriage to John Dickenson, politics and to the daughters of Caterina Jackson.
Included in the archive is a copy letter from Hamilton in which she admonishes Mary Jackson, Caterina's daughter, for having provoked gossip by staying unaccompanied in his house after the death of his wife (HAM/1/10/2/17).