The papers of Rev Harry Grey and his wives consist of correspondence (EGR4/6/1) and other papers (EGR4/6/2), which include a manuscript autobiography of Rev Harry Grey.
The papers of George Harry Grey (1737-1819), 5th Earl of Stamford, contain a receipt from Harry Grey for £200 paid by Lord Stamford (EGR4/1/6/2/12), and correspondence relating to Lord Stamford's offer, rejected by Harry Grey, of the living of Ashton under Lyne co. Lancs (EGR4/1/9/6/5-6). Among the papers of George Harry Grey (1765-1845), 6th Earl of Stamford, is a map showing property owned by Harry Grey in Millington township (EGR4/2/7/2/49). The papers of George Grey (1821-82) contain two letters from his father Harry Grey (EGR4/7/2/2 & /4), and an account for the executorship of Harry Grey's will (EGR4/7/2/5). The papers of William Grey (1819-72) contain three letters from his father Harry Grey (EGR4/8/6/36, /40 & /43), and copies made by William Grey of the last entry in his father's diary, and of his father's memoranda concerning his will and codicils (EGR4/8/7/4 & /5). The papers of various members of the Grey family contain a bundle of letters from Rev Harry Grey to his cousin Maria Leycester (EGR4/10/22), and two letters to his daughter Frances Charlotte Elizabeth (EGR4/10/26-27).
The subfonds EGR5, Papers of the White Family, contains a letter from Harry Grey to ?William White discussing the negotiations over the marriage of William Grey and Harriet White (EGR5/2/4/29). Within the subfonds EGR11, Papers from Dunham Massey Hall relating to the Cheshire and Lancashire Estates, there is an account for the appointment of Rev Harry Grey and others as domestic chaplains to the 6th Earl of Stamford, 1819 (EGR11/2/8/84). The miscellaneous papers from Dunham Massey Hall contain a letter from Hugo Worthington to Rev Harry Grey concerning the latter's estate, 1817 (EGR13/26/4), and letters from Rev Harry Grey to Rev James Richey and Miss Pidsley, 1842 & 1843 (EGR13/38-39).