GQC teaches that, in the hereafter, we will have our prior memories of HF and HM restored.
George Q. Cannon, "Discourse by President George Q. Cannon," Millennial Star 51 no. 29 (22 July 1889): 450
There is no doubt in my mind that we were familiar with the principles of the Gospel; and though they had faded from our memories, yet when we heard them again the recollection was revived. I believe that when we see our Father in heaven we shall know him; and the recollection that we were once with Him, and that He was our Father, will come back to us, and we will kiss each other. We will know our Mother, also.