F. W. Otterstrom recorded Joseph F. Smith saying two of his wives assisted in a priesthood blessing.
Joseph F. Smith, "Faith and Resurrection," The Improvement Era 21, no. 4 (November 11, 1917): 355
I asked him [George Romney] if he desired to have us administer to him. He feebly said: "Yes; I always love to have the administrations of the elders." We anointed him with holy oil, as the scriptures direct, and laid our hands upon him-both the Bishop and myself, one of his sons who was present, and my wives. We all laid our hands upon him and prayed for him; and the spirit that pervaded that occasion, openly and directly and positively declared that he would not die, that he would get well. You may judge the result, for he still lives, and is in possession of his faculties and of his strength of body and of mind today, as fully as he had been for years and years before that day.