The letters were written to his wife, Sarah, and two daughters from France, 3 Jul-31 Aug 1789. They describe events in Paris at this time, and touch on the French peasantry and their agricultural practices amongst other subjects. They were edited by his daughter, Elizabeth, Lady Eastlake, in 1880. See Dr Rigby's letters from France &c. in 1789, ed. by Lady Eastlake (London, 1880). Papers also contain a printed poem (fol. 58) to Edward Rigby, 1805, and a poetical epistle (fol. 60) to him as mayor of Norwich about his dissent from proposed celebrations of Trafalgar.