Comprises: 'Waterhouse letters of interest', correspondence relating to papers of Sir Ronald Waterhouse, Private Secretary to Prime Ministers Bonar Law and Stanley Baldwin, bought by Rose at Sotheby's in 1979 for his research on George V and later sold, 1926-1997 letters, 1939-1941, received by John Gore, biographer of King George V, and related papers, later passed to Rose, 1939-1983 and n.d. [c.1940-1976] papers relating to the Civil List and other…