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Ridgway, Robert 1850-1929
Letter from Robert Ridgway to Spencer Fullerton Baird concerning the documentation by photographs of the primitive forest of the Mississippi Valley.
Robert Roskell · 1820–21
William Ridgway & Co. · ca. 1840–ca. 1854
William Ridgway, Son & Co. · ca. 1844–ca. 1846
Francesco Granacci (Francesco di Andrea di Marco) · ca. 1506–7