The biography of Gwynne Davies is all bits and pieces so far. He was Welsh, made his first recordings in 1906, sang around the UK
in opera and concert; from 1920 to 1922, he sang a lot of roles for the touring Carl Rosa company: Hoffmann,
Faust, Rodolfo, Turiddu, Pinkerton, José, Canio, Radames, Lohengrin, Don Caesar de Bazan (Maritana) and Francis (Angelus
by Edward Naylor). At one point, he was "Principal Tenor of the English Opera Seasons at Covent Garden"; at least, that's what
he said about himself when advertising his services as a voice teacher in the early 1940s.
Reference 1: The Stage, various 1941 issues; reference 2
I wish to thank Anton Bieber for the recordings and label scans.