. . "Joseph Howard Mathews"@en . . . . . . . . "53654285"^^ . . . . . . . . . . . . . . . . "1083877507"^^ . . . . . . . . . . "Joseph Howard Mathews (October 15, 1881 \u2013 April 15, 1970) was an American physical chemist, university professor, and expert on firearm identification. Mathews was Chair of the Department of Chemistry at the University of Wisconsin\u2013Madison for 33 years (1919\u20131952)."@en . "Joseph Howard Mathews (October 15, 1881 \u2013 April 15, 1970) was an American physical chemist, university professor, and expert on firearm identification. Mathews was Chair of the Department of Chemistry at the University of Wisconsin\u2013Madison for 33 years (1919\u20131952)."@en . . . . . . . . . "10484"^^ . . . . . . . . .