Full-length portrait of the actress saluting in costume as Marie from Donizetti’s opera, “La Figlia del Reggimento.” Her accoutrements include a canteen, top hat, and a drum., In Frank Leslie’s illustrated newspaper, vol. 3, no. 68 (Mar. 28, 1857), p. 264., Cora De Wilhorst was an opera singer and a native New Yorker.