Enclosure from volume 2, inside front cover, "2. Art collection...Sowerby family", Folder: 19, item: a. Papers of Lady Pauline Trevelyan, 1827-1866, and other family members, 1809-1879, Great Britain and Europe, MS C133. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/215639 Accessed June 21, 2025.