[First Presidency letter to Stake Presidents]
Having reason to believe that some members of the Church are secretly engaged advising and encouraging others to enter into unauthorized and unlawful marriages, we have deemed it advisable to call your attention to the communication we addressed to you on this subject on the 6th of October, 1910, a copy of which is herewith appended. And believing, as we do, that these people are at the bottom of all the violations referred to in our communication, we direct your special attention to them with a request that any information received by you from time to time relating to cases of this character be followed up and investigated with a view to having this class of offenders placed on trial for their fellowship in the Church, as we regard them culpable with actual offenders. Please make the same request of your bishops.
[First Presidency, Letter to Presidents of Stakes and Counselors, as quoted in Minutes of the Apostles of The Church of Jesus Christ of Latter-day Saints, 1835-1951, Electronic Edition, 2015]