Donated to History Colorado by Shannon Dennison. The donor is the granddaughter of William Dale Dennison. William Dennison was born in California in 1932 and died in Denver in 2001. He was a veteran of the Korean War who started working at Rocky Flats in the 1980s. He remained employed at the site until it closed in 1992. Technically an employee of DOW Chemical Company (they were awarded the US Government contract for the site), William Dennison worked in security.