1. ^Hackett, Alice Payne. [https://books.google.com/books?id=cOI8AQAAIAAJ&q=%22adventures+of+captain+horn%22+alice+payne+hackett&dq=%22adventures+of+captain+horn%22+alice+payne+hackett&source=bl&ots=5i-CU9xcIj&sig=XysAoCqgdRGpbYt6REjWgSbWtF8&hl=en&sa=X&ei=DdM-UJqvJeHq0gHKlYCgDA&ved=0CDgQ6AEwAg Seventy Years of Best Sellers 1895-1965], p. 91 (1967)
2. ^Zipes, Jack. [https://books.google.com/books?id=78TWDCgWhT8C&pg=PA192&lpg=PA192#v=onepage&q&f=false When Dreams Came True: Classical Fairy Tales and Their Tradition, Second Edition], p. 192 (2007)
3. ^[https://books.google.com/books?id=hIFlJtBty40C&pg=PA13991&lpg=PA13991#v=onepage&q&f=false A Library of the World's Best Literature - Ancient and Modern - Vol.XXXV: Southey-Suetonius], p. 13991 (1898?)
4. ^(2 June 1895). [https://timesmachine.nytimes.com/timesmachine/1895/06/02/102460379.pdf Novel of Early Summer (book review)], The New York Times