Complex sentence: Elmer Keiser Bolton (1886-1968) was a prominent American who was one of the first Industrial Research Directors who formulated many of the basic concepts of directing industrial research at E.I. du Pont de Nemours and Company.
Split into simpler sentences: Elmer Keiser Bolton (1886-1968) was a prominent American and one of the first industrial research directors. He formulates many basic concepts for directing industrial research at E.I. du Pont de Nemours and Company.