Complex sentence: Shortly before the complete demise of La Réunion, botanist and pharmacist Jacob Boll arrived and taught Julien Reverchon who later became celebrated in his own right as a professor of botany at Baylor University College of Medicine and Pharmacy in Dallas.
Split into simpler sentences: Shortly before the complete demise of La Réunion, botanist and pharmacist Jacob Boll arrived and taught Julien Reverchon. He was later became celebrated in his own right as a professor of botany at Baylor University College of Medicine and Pharmacy in Dallas.