found: The Carter family, 1832:t.p. (Gray and Bowen; publishing firm at Boston)
found: Christian examiner and general review, 1830:t.p. (Gray & Bowen)
found: MWA/NAIP files(hdg.: Gray and Bowen; usage: Gray and Bowen; Gray et Bowen; note: firm of Frederick Turell Gray (1804-1855) and Charles Bowen)
found: OCLC, September 25, 2014(access point: Gray and Bowen; usage: Gray and Bowen; activity found between 1829 and 1834)
found: Boston directory, 1830(entry under: Gray (Frederick T.) & Bowen (Charles), publishers, 1 School)
found: Stimpsons Boston directory, 1831-1832(entry under: Gray (Frederick T.) & Bowen (Charles), pub., 141 Washington)