[Apostle Wilford Woodruff]
25 Christmas I Called upon President Young & G. A. Smith in the morning. I attended the school of the prophets. Many Questions were asked. Presidet Young answered them.
Lorenzo Young asked if the Spirits of Negroes were Nutral in Heaven. He said someone said Joseph Smith said they were. Presidet Young said No they were not. There was No Nutral spirits in Heaven at the time of the Rebelion. All took sides. He said if any one said that He Herd the Prophet Joseph Say that the spirits of the Blacks were Nutral in Heaven He would not Believe them for He herd Joseph Say to the Contrary. All spirits are pure that Come from the presence of God. The posterity of Cane are Black Because He Commit Murder. He killed Abel & God set a Mark upon his posterity But the spirits are pure that Enter their tabernacles & there will be a Chance for the redemption of all the Children of Adam Except the Sons of perdition.
[Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]