The Inn at Lake Devine by Elinor Lipman

This story is set in the 1960s and deals with love and religious prejudice in a fun-loving tale. As a child, Natalie Marx learns first-hand the discrimination her Jewish family has to deal with as they are turned away from an inn. She then makes it her life's mission to teach the innkeeper a lesson. On her way, though, she falls in love with the innkeeper's son, a crisis for both families, Jew and Gentile. This one is easy to read and heartwarming.