The 44 letters related to British theater in the late 18th and early 19th centuries, dating from 1773 to 1853. The collection is divided into five series: I. Letters to William Kenneth (8); II. Letters to or about Richard Brinsley Sheridan (3); III. Letters to James Winston (5); IV. Theatrical letters arranged alphabetically by sender (26); and V. Non-theatrica l letters (2). The two letters in the 5th series are a letter from a solicitor to Lady Emma Hamilton dated 1806 and a letter from Irish poet Thomas Moore dated 1832. Most of the theatrical letters deal with the engagement of players and theater personnel.