The letters of the Booth family of Twemlow consist of two series of letters from different generations of the family: the first contains letters from William Booth (b. 1602) to his brother, John Booth (1584-1659), and the second comprises letters of Thomas Booth (b. 1646) to his brother, another John Booth (1641-1698). The letters intersperse discussion of family and business matters with contemporary accounts of military and political events.