Alexander Crosbie graduated from the Royal College of Surgeons, Edinburgh, in 1859.
He was appointed assistant naval surgeon to the Terror in 1863. He was an assistant naval surgeon on the same ship as JW returning from Jamaica in 1867. He retired in 1881.
Medical Register, London; The Times, London, Wednesday, 25 February 1863, p. 9; The Times, London, Tuesday, 11 January 1881, p. 10.