Lester Bush offers source on how John Taylor felt Joseph was wrong on Elijah Able's ordination.
Lester E. Bush, "Mormonism's Negro Doctrine," Dialogue: A Journal of Mormon Thought 23, no. 1 (1973): 261
Significantly, John Taylor, an apostle under the prophet for over five years, added no corroboration to the claims of Coltrin or Smoot. Rather, he observed that mistakes had been made in the early days of the church which had been allowed to stand, and concluded that 'probably it was so in Brother Abel's case; that he, having been ordained before the word of the Lord was fully understood, it was allowed to remain.