Steamboat James W. Baldwin at dock in Rondout, A.B. Valentine, H.T. Caswell astern, looking west. Donald C. Ringwald Collection, Hudson River Maritime Museum.
Detail drawing of the side view of the Mary Powell showing hull supports, hogframe, walking beam & paddlewheel. Donald C. Ringwald Collection, Hudson River Maritime Museum.
Drawing of a side view of the Mary Powell showing hull supports, hogframe, walking beam & paddlewheel. Donald C. Ringwald Collection, Hudson River Maritime Museum.
Schematic of the Mary Powell’s engines, 1861, by the American Society of Mechanical Engineers. Donald C. Ringwald Collection, Hudson River Maritime Museum.