Margaret Wetter married John Lang on 11 May 1861 at Mussoorie, Bengal, India. Following his death she married Russell Thomas Birch at Bengal, India, on 19 September 1865 and then Berthold Ribbentrop on 10 Apr 1871 at Bengal, India.
'Ribbentrop, Margaret Angelina (1838–1873)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/ribbentrop-margaret-angelina-28005/text35736, accessed 29 March 2024.