Contains 40 letters sent from Erasmus Darwin to his mother and father, Ida and Horace, from 25 September 1893 to 6 March 1914, and a single letter to his sister Nora dated 18 September 1908. Almost half of the letters were sent between 1893 and 1901 when Erasmus was a pupil at first Horris Hill School, Newbury and later Marlborough College. The remainder were sent between [1906] and 1914.