Family correspondence and papers, 1811-1918
- (items 1-7) correspondence of his grandfather, William Gregory, 1811-1827
- (item 8) letter from his grandmother, Lady Anne Gregory, 
- (item 9) letter from his [mother, Elizabeth Gregory?], c.1874
- (items 10-30) letters from his cousin and land agent, H. Charles Gregory, 1879-83
- (items 31-4) correspondence with his second wife, Augusta, Lady Gregory, 1879, 1890
- (items 35-40) miscelleanous correspondence and papers of his second wife, Augusta, Lady Gregory, 1893-1918
- (items 41-60) letters to his brother-in-law and land agent, Algernon Persee, 1882-1886, n.d.
- (items 61-9) letters from his cousin, Gertrude O'Hara, 1880-1888, n.d.
Dep. d. 983