I remember Blyth as a sad little town, but I looked it up and there seems to be some urban regeneration on the go, which is nice.
I like
Blythe as a mn, and
Hilda Blythe Arnold works very well. So, that leaves the fn, and I don't enjoy
Theodora with
Hilda, or any other -a name. Out of
Daphne and
Winifred, I'm a bit torn!
Winifred seems more vintage
Geordie, but I prefer the sound and the greater lightness of
Daphne.
Daphne Hilda Blythe, therefore!