Denkmann, Frederick C. A. Portrait, n.d.
Born in Prussia in 1822, Frederick C. A. Denkmann immigrated to the United States in 1849 and settled in Pennsylvania. There, he married Catherine Bloedel, the sister of Weyerhaueser’s wife Sarah. The two eventually moved to Rock Island, Illinois, where Denkmann established himself as a grocer. In 1860, Weyerhaeuser and Denkmann pooled their money to buy a failing Rock Island sawmill. Their “co-partnership,” the Weyerhaeuser & Denkmann Company, was the forerunner to today’s Weyerhaeuser Company. Portrait from Corner stone laying and dedication of the Denkmann memorial library, Augustana College and Theological Seminary. Rock Island, Ill., 1911, p. 14.