His correspondence reflects his interests and activities. It consists only of letters received by George Melly, which have been bound up under the title 'Geo. Melly, M.P. Private Correspondence' in 3 series:
1-5 in 4 volumes 1844-62, vol. 3 missing, old ref.
I-XXVIII in 30 vols., 1857-94, old ref. E 20394.
Autographs in 2 vols., 1854-c.1890, old ref.
There is also a volume of newscuttings, pamphlets, and a few copies of his letters, 1857-62, old ref. Hq 858.