Darwin was eminent as a naturalist, geologist, biologist, and author. He was also a geologist and palaeontologist. His father was a geologist and civil engineer. These have real meaning for the geologist and paleontologist. He became close to the geologist and natural theologian, William Buckland. Fred Searls became president in 1947, after serving as the company's exploration geologist. His father Ian Knight was a Welsh geologist and musician. Borra Caves are caves discovered by British geologist William King in 1807. Hickenlooper worked as a geologist in Colorado for Buckhorn Petroleum in the early 1980s. Mantel is married to the retired geologist Gerald McEwen. He was also close to pioneering geologist James Hutton. It was named in honor of planetary geologist . Pioneer geologist Douglass Houghton commented on this find in 1838. Houghton Lake is named after the first state geologist, Douglass Houghton who explored the area. Owen went on to become a noted geologist.