Dumas, Tancrède, 1830-1905 (Personal Name)

American Palestine Exploration Society photographs, 1875 (name not given)

BnF, Voyage en Orient, viewed February 9, 2011: Tancrède Dumas page

Encyclopedia of nineteenth-century photography, 2007: p. 1030 (Tancrede Dumas of Beirut; photographer) p. 452 (Dumas, Tancréde (1830-1905))

East of the Jordan : a record of travel and observation in the countries of Moab, Gilead and Bashan, 1881: p. 9 (T. R. Dumas)

LC in OCLC, 28 July 2010: (hdg.: Dumas, Tancrède R.; usage: Dumas)

Photographes d'Asie (1840-1944) (website), viewed March 9, 2019 (Dumas, Tancrède, 1830-1905; Beyrouth, 1860-1895; Italian of French origin, his parents had emigrated to Milan; he seems to have learned photography in Florence; in 1860 he founded a studio in Constantinople and made "cartes de visite" format; in 1866 he was in Beirut in the consulate quarter and seemed to be an employee for the maison Bonfils; he did portraits, views of Beirut and Damascus, Upper Egypt, Palestine, Syria, Lebanon and Turkey, as well as Greece and Mesopotamia, according to his 1872 catalogue; in 1878 he proposed the sale of four albums of 100 views each (not realized); that year he accompanied the duke of Mecklembourg on his trip and thus became "photographe de la Cour de Prusse"; from 1885, his photos are signed Dumas et fils)

Luminous-Lint: Photography: History, Evolution and Analysis (website), viewed March 9, 2019 (Tancrède Dumas; T.R. Dumas, T.R. Dumas & Cie., T.R. Dumas et Fils, Tancrède R. Dumas; at the same time he was operating as a photographer, he was also following a parallel career as a banker; from 1900 to 1904 Le Bottin mentions the establishment T.R. Dumas et Fils, rue Lafitte, Paris under the heading Banquiers et Commissionnaires)