Check out Marshall McDonald's haircuts throughout his career:
Marshall McDonald had a variety of different hairstyles during his career. He became famous as a talented engineer and metallurgist. Nevertheless, the American engineer, professor, geologist, mineralogist, pisciculturist, and fisheries scientist was mainly known for his incomparable sense of fashion and his likable personality. Before his death at the age of 60 he was repeatedly featured in tabloids due to his outstanding hairstyles. Check out Marshall McDonald's former and current hairstyles in the image box below: