Question: What is the date of death of Charles Koch's father?
Sentence (from "Fred C. Koch"): Fred Chase Koch (September 23, 1900 – November 17, 1967) was an American chemical engineer and entrepreneur who founded the oil refinery firm that later became Koch Industries, a privately held company which, under the principal ownership and leadership of Koch's sons Charles and David, was listed by "Forbes" in 2015 as the second-largest privately held company in the United States.
Relevant evidence: Yes