The collection primarily reflects the work of Mary Leadbeater and her descendents. It contains family correspondence between
the Shackletons, the Leadbeaters, and the Barringtons (the family into which Mary's daughter, Sarah, married). It also includes
correspondence from members of the Society of Friends to Richard Shackleton and Mary Leadbeater.
Much of the following information is taken from Kenneth W. Jones, "The Treasure of Ballitore,"
Soundings [UCSB Library], 7, 1 (Sept. 1975): 33-39.