found: Work cat.: Fennimore, Donald L. Silversmiths to the nation, c2007:t.p. (Thomas Fletcher and Sidney Gardiner, 1808-1842) p. 35, etc. (Fletcher & Gardiner firm opened Boston, 1808; closed Philadelphia, 1842)
found: Newman, H. Illus. dict. silverware, 1987(Fletcher and Gardiner; firm of silversmiths that is well known for having made in the United States, c. 1810-40, silverware in the empire style)
found: Oxford art online, Apr. 6, 2009(Fletcher & Gardiner; American silversmiths established in 1809 in Boston by Thomas Charles Fletcher (b Alstead Cheshire, NH, 3 April 1787; d Delano, NJ, 14 Nov 1866) and Sidney Gardiner (b Southold, Long Island, NY, 23 Jan 1787; d Veracruz, Mexico, 1827) and moved in 1811 to Philadelphia)
notfound: Credo reference, Apr. 6, 2009