Question: Frederick Robinson Koch ( born August 26, 1933) is an American collector and philanthropist, the eldest of the four sons born to which American industrialist chemical engineer and entrepreneur who founded the oil refinery firm that later became Koch Industries?
Sentence (from "Frederick R. Koch"): Frederick Robinson Koch ( ; born August 26, 1933) is an American collector and philanthropist, the eldest of the four sons born to American industrialist Fred Chase Koch, founder of what is now Koch Industries, and Mary Clementine (Robinson) Koch.
Relevant evidence: Yes