MJB references HM.
Bryant S. Hinckley, Sermons and Mission Services of Melvin Joseph Ballard (Salt Lake City: Deseret Book, 1949), 205
No matter what heights God has attained or may attain, he does not stand alone; for side by side with him, in all her glory, a glory like unto his, stands a companion, the Mother of his children. For as we have a Father in heaven, so also we have a Mother there, a glorified, exalted, ennobled Mother.