I don't often find good examples of WWII era letters. When I do it's usually "V" mail photgraphed and copied and reviewed by censors so it doesn't contain any breech of security. This also scrubs all the value of why you would want to read other peoples' mail in the first place. Fortunately these sample provide a little more real view into the experience of folks during WWII.
This letter from a female cousin of the addressee gives a good view of what it was like live in the 1940's
Good references to Connecticut amusements and events during wartime. I especially like where she asks if "...you've met any cute W.A.V.E.S. or bathing beauties." (WAVES stood for Women Accepted for Volunteer Emergency Service)