AwkwardSquad, love Lillian Beckwith - I was introduced to her books by my A level english teacher back in the eighties - no-one I ever mention them to has ever heard of her! Time for a revival. OP, Lillian Beckwith's books are lovely - funny, touching but not saccharine. Start off with 'The Hills is Lonely' and take it from there.
In a similar vein, Lavinia Derwent - I'm buying my DMum these for Christmas - stories of a girl growing up on a remote farm in the Scottish Borders in the early part of the 20th century - 'A Border Bairn'.
I love Susan Hill's 'The Magic Apple Tree' - not fiction, but a semi-fictionalised account of a country year - the chapter on Christmas is beautiful.
Mollie Hughes books about growing up in London in the latter half of the 19th century are a lovely read. I think she's published as M V Hughes.
Echo PP's mention of Persephone Books - they are beautiful, and many of them are of the genre you requested:
Would really recommend:
Mollie Panter Downes
E M Delafield
D E Stevenson
Persephone, I like gentle books, especially at the moment - they provide an escape from the shitshow that is the UK under Covid. I have, in the past, read plenty of grim, depressing books from Thomas Hardy, Sylvia Plath, John Steinbeck to Ishiguro. I have read plenty of violent crime fiction - the likes of Jo Nesbo for instance. At the moment, that's not what I need and I sure as hell wouldn't be judging anyone for their perfectly acceptable reading choices.