In an official LDS Church Manual, Church President Joseph F. Smith told LDS parents they should use the above diagram to explain to their children “how Jesus was the only begotten Son of God.” Daddy plus Mommy equals you; Heavenly Father plus Mary equals Jesus. (Family Home Evening Manual, p. 125-6, 1972)
Thanks for the update, but ...
I could have used many more quotes supporting the claim the Mormon Church teaches God physically begat Jesus, as you can see here and here. The citations come from various Mormon Church Presidents, Apostles, and official publications.
I was especially interested in your comments about Apostle McConkie since I have never heard those arguments raised before. I wasn't aware that Mr. McConkie was not an Apostle at the time he wrote Mormon Doctrine. Has he ever retracted any of these views since he became an Apostle? Has the Mormon Church ever renounced any of the teachings found in Mormon Doctrine, and if so, which ones?
I think I do understand at least one reason for some of the confusion between the clear statements of Mormon Church Authorities and the information found at lds.org. According to the authors in one of the articles I cited:
You might ask, "How can Mormons say that Christ was born of a virgin when leaders have consistently described an act common to the reproductive process?" This is accomplished by changing the definition of the word virgin. Since Mormonism teaches Mary did not have sexual relations with a mortal man, but instead was impregnated by an immortal man, Mormons feel that they can still use the phrase virgin birth. As Bruce McConkie said, "For our present purposes, suffice it to say that our Lord was born of a virgin, which is fitting and proper, and also natural, since the Father of the Child was an immortal Being" (The Promised Messiah, pg. 466).Frankly, I can see why the Mormon Church might want to disguise this teaching. Again, quoting from the aforementioned article:
When one considers that the LDS Church also teaches that every human born on earth is a literal child of God, the above quotes become even more blasphemous. Mormon leaders have maintained that all humans, Mary included, were born first in a spiritual state known as the pre-existence. If Mormon leaders are telling the truth when they say that God physically impregnated Mary, then we have no other recourse than to assume the Jesus of Mormonism was created by way of an incestuous relationship.