Classicly

His Sombre Rivals is a ficiton story based on US Civil War written by the American novelist Edward Payson Roe, whose other works are He Fell in Love with His Wife, A Young Girl's Wooing, Barriers Burned Away, etc..

Author's Preface:

The following story has been taking form in my mind for several years, and at last I have been able to write it out. With a regret akin to sadness, I take my leave, this August day, of people who have become very real to me, whose joys and sorrows I have made my own. Although a Northern man, I think my Southern readers will feel that I have sought to do justice to their motives. At this distance from the late Civil War, it is time that passion and prejudice sank below the horizon, and among the surviving soldiers who were arrayed against each other I think they have practically disappeared. Stern and prolonged conflict taught mutual respect.