The Book of Common Prayer
Note to all non-Episcopalians: The next time you are wandering around a good used bookstore, see if you can find a pre-1979 copy of The Book of Common Prayer. It's lovely, elegant, clearly written. I believe what I have is the 1928 version. Unlike the 1979 revision, the 1928 version stands in direct line of descent from Thomas Cranmer's 1549 Book of Common Prayer, as "Americanized" in 1790, following the split with England.
For a couple of bucks, you can't do much better than this in classic American English.
NOTE: I've seen this most often in used book stores and rummage sales in a red cover (depicted here). My copy has an older, dark blue binding.