H. M. Lawrence (American, 1850 - 1900)
Peter Newell (American, 1862 – 1924)
Joseph Papin (American, 1931 – 1992)
Charles Willson Peale (American, 1741-1827)
Udo Keppler (American, 1872 – 1956)
Louis Agassiz (American, 1807 – 1873)