Weyerhäuser was buried in the family mausoleum in Chippiannock Cemetery in Rock Island, Illinois.
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In 1906, Weyerhäuser's business concerns entered the public eye when the Interstate Commerce Commission recommended to Congress that the lumber industry be investigated for possible anti-trust violations.
Other early examples of pension fund investment outsourcing included Brown & Williamson, Weyerhauser, Maytag, ADM and K-Mart.