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: 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: 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.