[Abraham H. Cannon]
Bro. [Lorenzo] Snow said I would live to see the time when brothers and sisters would marry each other in this church. All our horror at such a union was due entirely to prejudice, and the offspring of such unions would be as healthy and pure as any other. These were the decided views of Pres. Young when alive, for Bro. S[now]. talked to him freely on this matter. Bro. S[now]. believes that Jesus will appear as a man among this people and dwell with them a time before he comes in His glory. The Gentiles will hear of it and they will reject him, as the Jews did anciently, but they will have no power over him at all.
[Abraham H. Cannon Journal Excerpts, http://www.amazon.com/Apostles-Record-Journals-Abraham-1889-1896/dp/B000MFD1K4]