The Church stated in their Dec 2014 essay ' the following:
The Church of Jesus Christ of Latter-Day Racism – …
"'My faith in the gospel of Jesus Christ, as taught by the Church of Jesus Christ of Latter-day Saints, is as strong today, nay, it is if possible stronger than it was the day I was first baptized. I pay my tithes and offerings, keep the word of wisdom, I go to bed early and rise early, I try in my feeble way to set a good example to all.'
Mormon Church Condemns Nationalism and Racism ..
"After Isaac died, Jane asked that they [her children] be given the ordination of adoption so they would be together in the next life. "She explained in correspondence to Church leaders that Emma Smith had offered to have her sealed to the Smith family as a child. She reconsidered that decision and asked to be sealed to the Smiths.
Racism + The Church – My thoughts on Jesus and His Church
17) In 1965, BYU President Wilkinson wrote in his journal that Harold B. Lee was "protesting vigorously over our having given a scholarship at the B.Y.U. to a negro student from Africa. Brother Lee holds the traditional belief as revealed in the Old Testament that the races ought to be kept together and that there is danger in trying to integrate them on the B.Y.U. campus." (Source: D. Michael Quinn, The Mormon Hierarchy: Extensions of Power, p. 852 (Signature Books 1997)).
There is a long history of racial tension in Churches of Christ
We think it is very clear from the above examples that there was a widespread attitude of segregation in the Church, even if no "official policy."