Article: Griffiths, Antony. 2022 The origin of the Toby Jug. Transactions of the English Ceramic Circle. 32: 123-44.
• Extensive article discussing Toby Jug originsBook: Lewis, Griselda. 1969 A Collector's History of English Pottery.
• Similar example attributed to younger Ralph Wood c. 1770-80: p. 93, fig. 168.Book: Fowble, E. McSherry. 1987 Two Centuries of Prints in America, 1680-1880 : A Selective Catalogue of the Winterthur Museum Collection.
• 1886 Winterthur print (1978.0033) with Toby jug on corner cupboard: p. 365, no. 253, "A Glass with the Squire," engr. by James David SmillieBook: Oswald, Adrian, et al. 1982 English Brown Stoneware 1670-1900.
• Salt-glazed brown stoneware toby jug: p. 149, no. 113 a, b, Oldfield, Derbyshire.Book: Halfpenny, Patricia A. 1991 English Earthenware Figures, 1740-1840.
• Modern example in William Kent of Burslem's 1955 catalogue, p. 74, as "SQUIRE No. 380": p. 288.Book: Oliver, Anthony. 1981 Staffordshire pottery : the tribal art of England.
• Modern example in William Kent (Porcelains) Ltd. of Burslem's 1960 catalogue listed as "SQUIRE No. 380": p. 83, no. 108. (See nos. 106-110 and p. 102, no. 137 for more of the 370+ figures in the catalogue.)Book: Blaettler, Roland. Céramique du Portugal du XVIe au XXe Siècle.
• Portuguese creamware Toby and Ann Gunn jugs: p. 152, nos. 76-77, creamware 1800-25, color glazed, Porto, Portugal.Book: Museu Nacional de Soares Dos Reis. 2009 Fabrica de Louca de Miragaia.
• Portuguese tin-glazed toby jugs: p. 181, nos. 156-57, polychrome, Miragaia factory, painted "R" mark, late 18th/early 19th century