Senex, John, -1740, Senex, John, -1740, George, III, King of Great Britain, Baltimore, Charles Calvert, Baron, Penn, Thomas, Penn, Richard, Penn, John, Visscher, Nicolaes, Hutchinson, Thomas (Engraver and draughtsman), and Ferdinand John Paris. "Proposed Maryland / Pennsylvania Boundary." Map. London: John Senex, [1735]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:q524mt414 (accessed April 20, 2024).