Dear Morris Minor (words that don't often pass my lips... )
May I suggest a chat with Parsons' Bakery in Whitchurch Rd? They're a family-run business & been there since 1926 so they say.
https://www.parsonsbakery.co.uk/who-we-are
Edit: Sorry, this may be a duff lead. There is a Parsons' Bakery in Whitchurch Rd. but it looks like a Bristol-based company?
May I suggest a chat with Parsons' Bakery in Whitchurch Rd? They're a family-run business & been there since 1926 so they say.
https://www.parsonsbakery.co.uk/who-we-are
Edit: Sorry, this may be a duff lead. There is a Parsons' Bakery in Whitchurch Rd. but it looks like a Bristol-based company?