Complex sentence: Doctor James Stokes Millner (died 25 February 1875) was the medical officer following George W. Goyder's 1869 expedition to found the first colony at Port Darwin, Northern Territory, Australia.
Split into simpler sentences: Doctor James Stokes Millner (died 25 February 1875) was a doctor and early pioneer of northern Australia. He was the medical officer to arrive in Port Darwin following George W. Goyder's 1869 expedition to found the first colony in Northern Territory, Australia.