You are a kindred spirit!
I'm a longtime Anglophile also...have only spent time in England twice and in Scotland twice. I love reading British fiction. The authors listed here that I'm familiar with are great - especially D. E. Stevenson....try Elizabeth Goudge (hard to find even at Alibris). I'm to explore some of the authors mentioned here that I'm not familiar with.
Another good mystery writer was Margery Allingham..her main detective is Albert Campion - BBC did a series of episodes which have been shown on PBS here in USA.
So many good ones!