↑ New Zealand Department of Internal Affairs, "Births, Deaths & Marriages Online," database, (https://www.bdmhistoricalrecords.dia.govt.nz : accessed 10 September 2020), birth registration of Sydney Salvin Swan, child of Frances and George Henry; citing registration no. 1888/8771.
↑ Ancestry.com. New Zealand, Birth Index, 1840-1950 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2014. Ancestry Record 8949 #1910369
↑ New Zealand Department of Internal Affairs, "Births, Deaths & Marriages Online," database, (https://www.bdmhistoricalrecords.dia.govt.nz : accessed 10 September 2020), marriage registration of Norah Ambrosine Gordon and Sydney Salvin Swan; citing registration no. 1925/1478.