Sergeant Decker by Laszlo Endrody

As the U.S. Civil War ends, Yankee Sergeant Decker realizes he has no home to which he can return. When he meets another Yankee soldier on his way home to his family, Decker follows the man to Tuscaloosa, where he meets a lady and can finally settle down. But just as his life is starting to come back together, tragedy strikes, and Decker must decide if life is worth rebuilding a third time.