Petition of the commissioners of the customs to the lords of the treasury in relation to Cos. Jackson (2 pieces), 2 August 1690, Box: 2, Folder: 4B:7. Sotheby Family Papers, MS 4. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/261850 Accessed May 17, 2024.