Correspondence of Sir John Frederick William Herschel, and the Herschel family, with related papers Letters to and from Sir John Frederick William Herschel, and to his wife, Lady Margaret Brodie Herschel [née Stewart]. With correspondence from other family members, notably Colonel John Herschel (1837-1921) and Sir William James Herschel (1833-1917), together with Sir John Herschel's daughters. The collection also contains notebooks and diaries. 17th century-20th century