[citation needed] He joined the United States Navy during World War II and served until 1946 when he returned to Weyerhauser.
[citation needed] In 1949 he was a founder of the Medina Foundation, which provides charitable grants in the greater Puget Sound area.
[4] Clapp was a member of the National Executive Board of the Boy Scouts of America for several decades.
[6] His second wife Evelyn and stepdaughter Gail Gardner were killed in an airplane crash near Santa Barbara, California, in 1951.
[7][8][9][10][11] Evelyn's son Booth Gardner was the state's governor from 1985 to 1993, and Clapp contributed $91,000 to his first gubernatorial campaign.