His brother Virgil feared that Warren's temper would get him killed. Virgil was reunited in 1898 with his first wife Ellen and daughter Nellie who had been told he had been killed in the Civil War. They visited twice, and Nellie told "The Oregonian" that during their visit, "My father said then, If Warren ever dies he will be shot. He is too hasty, quick-tempered and too ready to pick a quarrel. Besides he will not let bygones be bygones, and on that account, I expect that he will meet a violent death."