Notes for Gwynneth Vaughan
I cannot find her birth on FreeBMD, neither under Gywnneth, not under G* nor as female.
FindMyPast suggested these:
Last name First names Country of registration Place Registered year
VAUGHAN Caroline Esther G England Dorset, Wareham 1879
VAUGHAN Olive Gwen Wales Merionethshire, Ffestiniog 1880
VAUGHAN Female. (father: Thomas Vaughan) At sea "Hampshire" 1877
VAUGHAN Female (unnamed) Wales Montgomeryshire, Llanfyllin 1877
VAUGHAN Female (unnamed) England Herefordshire, Ross 1879
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No marriage found from 1895 to 1945 (when she would have been over 60).