https://digital.sciencehistory.org/works/6z7to37 Letter from John C. Waterman to Otto Haas, January 25, 1914 http://creativecommons.org/publicdomain/mark/1.0/ Waterman, John Charles, 1857-1939 Haas, Otto, 1872-1960 1914-Jan-25 Letter from John Charles Waterman (1857-1939) to his future son-in-law, Otto Haas (1872-1960). Otto Haas, co-founder of Rohm & Haas, married Phoebe Waterman Haas (1882-1967) in 1914. Phoebe Waterman Haas was one of the first American women to earn her doctorate in astronomy in 1913. Phoebe Waterman Haas Papers Texas--Texas City English Haas, Otto, 1872-1960 Waterman, John Charles, 1857-1939 text personal correspondence https://digital.sciencehistory.org/downloads/deriv/4fvtrwh/thumb_large_2X?disposition=inline https://digital.sciencehistory.org/works/6z7to37 http://creativecommons.org/publicdomain/mark/1.0/ personal correspondence https://digital.sciencehistory.org/downloads/deriv/4fvtrwh/download_full?disposition=inline https://digital.sciencehistory.org/downloads/deriv/t1vd191/download_full?disposition=inline