I've been working on a separate blog about the letters my parents sent to each other during WWII. They start out as friendly teenage letters between high school acquaintances, but romance grows through the letters over the time my Dad spent in the South Pacific.
I include transcripts of the letters and provide quite a bit of annotation. I've numbered them sequentially and it is best to read them in order.
Here is the link:
http://wartimeloveletters.blogspot.com