More research is needed to confirm Gwenllian's date of birth. Secondary sources and indirect evidence suggest that Gwenllian was born sometime between 1850 and 1858. However, a possible entry for Gwenllian in the collection "England and Wales, Civil Registration Birth Index," suggests that she was born sometime between January and March 1850. At this time, birth data given on Family Tree at FamilySearch.org. will be used.
A death certificate was located for a Winnie Clanton. Her father's name was listed as Jonithan Isaacs, and her birth place was listed as Wales. Winnie is a possible nick name for Gwenllian. However, more research is needed to confirm identities. The death date from Winnie's certificate will be used at this time.