Book: Belden, Louise C. 1980 Marks of American Silversmiths in the Ineson-Bissell Collection. 506 p.
• An illustrated glossary of spoon terms, pp. 467-488Book: Ensko, Stephen G. C. 1948 American Silversmiths and Their Marks III. 285 p.
• Information on Joseph Seymour & Co., p. 118Book: Currier, Ernest M. 1938 Marks of Early American Silversmiths: With Notes on Silver, Spoon Types & List of New York City Silversmiths 1815-1841. 179 p.
• Biographical information on maker and evolution of Joseph Seymour & Co., p. 128