Letters to John Cowper Powys from his mother Mary Cowper Powys (1), 1914, his sister-in-law Violet Powys (wife of Theodore Francis Powys) (1) (partial), [c. 1915], his father the Reverend Charles Francis Powys (2), 1918, his sister-in-law Alyse Gregory (wife of Llewelyn Powys) (7), 1924-1925, 1929, 1939-1940, 1960, his brother Llewelyn Powys (4), 1925, 1927 and undated, his sister-in-law Mabel Powys (first wife of Littleton Charles Powys) (2), [1939] and undated, his sister Katie (Philippa) Powys (1 + 1 postcard), 1941, 1949; his sisters Gertrude Powys, Lucy Penny and 'Marz' [?Marian Powys] (1 telegram), 1942; his brother Littleton Charles Powys (1 telegram), [1942]; his sister Lucy Penny (1, with an enclosed letter from Lucy to Phyllis Playter) 1946; his companion Phyllis Playter (1), undated; his son Littleton Alfred Powys (1 [?Christmas card]), undated; and Ernest Angell (aka Peter Grey), father of Powys's nephew Peter Powys Grey (1), undated; also an envelope (contents removed) from his sister Marian Powys (1954).