"The Egg & I", by Betty MacDonald
is another unforgettable classic.  If you have ever heard of Ma & Pa Kettle, this book is where those hilarious classic characters hale from.   It is a story about a woman who blithely (or blindly, lol) follows her husband into the wilderness, in the middle of nowhere, to chicken farm.  It is set in the  1920's, & is a fairly fast read.  I would put it at highschool level, or slightly above.   
Betty MacDonald also wrote "The Plague & I", "Onions in the Stew", & "Anybody Can Do Anything".
She has such a dry, biting wit, & she manages to find humour in the funniest, most mundane things.  I guarantee you will enjoy her books.  Teenagers will love them, adults will guffaw out loud & cherish them.
~Red