Apparently Robert Samuel BROWN emigrated from Ireland to Canada on his own in 1872. He crossed the Atlantic on the Prussian, an Allan Line Ship built by A. & J. Inglis, Ltd., Glasgow, Scotland. Tonnage: 3,030. Dimensions: 340' x 40'. Single-screw, 11 knots. Inverted engines. Three masts and one funnel. Clipper bow. Iron hull. The ship left Liverpool, England on May 2nd, Robert boarded at Londonderry, Ireland and they arrived in Quebec City on May 17, 1872.