Well if you guys don’t mind a woman joining in there is an old Jimmy Stewart civil war movie called Shenendoah and I have never been able to get through the end of that without crying. It’s the final scene where everyone is in church and his presumed dead son shows up. There’s one earlier in the film where he finds out his other son and daughter-in- law have been murdered that’s very emotional as well.
Shenandoah was based on a true story. Probably not really accurate but at least about a real person and events.
How about Gus (Robert Duvall) dying in “Lonesome Dove”? I can’t watch that scene; can barely make it through that chapter in the novel without blubbering.