Foundered in a typhoon, off Guam, in the schooner Julie, of Yokohama, Japan. His brother, Henry, was also aboard the ship.
'Marks, Laurence (?–1871)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/marks-laurence-21230/text31678, accessed 28 January 2023.