Silver Cross of Merit of the Ducal Saxe-Ernestine House Order
Ernest II, Duke of Saxe-Coburg and Gotha
Meyers Konversations-Lexikon, 4th edition (1885–1890)
Paintings of the nineteenth century: contribution to the history of art
Biographisches Jahrbuch und Deutscher Nekrolog
The Stuttgart Database of Scientific Illustrators 1450–1950