This one is actually very obvious. Let's take the clearest example; Jesus Himself. He died, he went to hell, took the Keys, and came back. Then he went to Heaven, and He says He's coming back.
Those chaps running hell down there surely knew Him. Those chaps running heaven up there surely know Him as well. And Those chaps who followed Him around for years knew Him once they took the time to actually take a look, e.g. breaking of bread.
If that isn't enough, check [1 Samuel 28]. I think the other references mentioned on this topic should cover the rest. 

changed on Monday, January 08, 2001 6:40:03 PM

I AM TRYING VERY HARD TO FIND THIS ONE...ONCE I SEE SOMETHING THAT I CAN PROBABLY ANSWER, IT KNAWLS AT ME UNTIL I DO FIND IT...I WILL NOT STOP LOOKING. AND WILL LET YOU KNOW...GOD BLESS
Hey.... Maybe this will help....[Mark 12:25]; For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven. [Mark 12:25],note: Jesus' teaching does not mean that a husband or wife will lose their particular identity and thus not recognize each other. Rather, the relationship with our earthly partners will be a deeper, spiritual one, though it will no longer be governed by the marriage union as on earth. I hope you can better understand and if I can be of any other assistance...feel free to email me...God bless!! 

changed on Monday, January 08, 2001 6:39:55 PM