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: Belden, Louise C. 1980 Marks of American Silversmiths in the Ineson-Bissell Collection. 506 p.
• Example marks, brief background information, sources, p. 262Book: McGrew, John R. 2004 Manufacturers' Marks on American Coin Silver. 176.
• Descriptions of different Ladomus retailer marks, p. 63, 115