David Hamilton Koch ( ; May 3, 1940 – August 23, 2019) was an American businessman, political activist, philanthropist, and chemical engineer. In 1970, he joined the family business: Koch Industries, the second largest privately held company in the United States. He became president of the subsidiary Koch Engineering in 1979 and became a co-owner of Koch Industries (along with elder brother Charles) in 1983. Koch served as an executive vice president of Koch Industries until he retired due to health issues in 2018. Wikipedia
David James Koch ( ; born 7 March 1956), nicknamed "Kochie" ( ), is an Australian television presenter who is best known as a host of the Seven Network's breakfast program, Sunrise from 2002 until 2023. From Adelaide, he began his media career as a financial journalist, writing for a number of different publications before eventually moving to television. Koch has been the chairman of the Port Adelaide Football Club, an Australian Football League (AFL) club, since October 2012. Wikipedia