Francis Calley Gray

Carl Mayer, 19th century

Adolf Hohneck, 1834

Heinrich Friedrich Thomas Schmidt, 18th-19th century

Friedrich Eduard Eichens, 19th century

Moritz Steinla, 19th century

Christian Haldenwang, 19th century

Ephraim Gottlieb Krüger, 18th-19th century

Samuel Amsler, 19th century

Johann Heinrich Friedr. Ludwig Knolle, 19th century

Ludwig Gruner, 19th century

Johann Friedrich Wilhelm Müller, 18th-19th century

Johann Heinrich Friedr. Ludwig Knolle, 19th century