Frederick Denkmann (April 8, 1821 – March 2, 1905) was an American lumber baron based in Rock Island, Illinois. He teamed up with his brother-in-law Friedrich Weyerhäuser and formed Weyerhäuser-Denkmann Lumber Company.
Frederick Denkmann (April 8, 1821 – March 2, 1905) was an American lumber baron based in Rock Island, Illinois. He teamed up with his brother-in-law Friedrich Weyerhäuser and formed Weyerhäuser-Denkmann Lumber Company. (en)