The Fallen Snow

The Fallen Snow - John J.  Kelley

This is a not an m/m, though one of the main characters is gay. This is post-WWI and has flashbacks to the son's service in the war, where he fell in love with a commanding officer. It's a thoughtfully written story and focuses on character development. The settings and characters come alive as you read; I felt like I was there, in those mountains, living those characters lives. Very few authors are able to do that.