Orson Hyde teaches that it is possible God the Father was once a mortal child like we once were who later was exalted.
Orson Hyde, General Conference, October 6, 1857, Deseret Weekly 3, no. 20 (October 27, 1853): 2
Remember that God our heavenly Father was perhaps once a child and mortal like we ourselves, and rose step by step in the scale of progress, in the school of advancement: has moved forward and overcome until he has arrived at that point where he is now.