“A series of beautiful and larger vessels [of the Sanford Independent Co., based in Bangor, Maine] appeared, starting in 1882 with the “Penobscot,” the twins: “City of Bangor,” 1894, and “City of Rockland,” 1900; and the sister ships “Belfast” and “Camden.”” - “Bangor, Maine: An Illustrated History – 1769-1976” – A New Edition in honor of the National Bi-Centennial edited by James B. Vickery, p. 47-48 – 1976.
