The Correspondence between Manning and Tuthill mainly dates from the time when they were both resident in Europe (1798-1806). There is also one earlier letter and a letter from Manning whilst he was in Bengal 1811.

There is further correspondence regarding Manning being executor of Tuthill's will which includes letters between Manning and Tuthill's daughter, Laura (1835-1836)

Letter from George Tuthill to Thomas Manning from Dresden. Tuthill chides Manning for not writing and then puts forward his dream of a house in London on the Thames and a short walk from Westminster where a group of young people of superior mind could reside together and study Literature. Tuthill sets out his scheme for living in such a way and suggests that Manning is the only person he knows that might be suitable. Tuthill suggests Coleridge might be a suitable candidate. He asks Manning to write with his thoughts. Handwritten, 1 piece, 3 sides. Dated 6 April 1799