In heaven the souls look different so how do you know who's who?

Wow!! That is an amazing question! This is also a question that has been debated between biblical scholars. The Holy Bible makes it pretty clear that we are able to recognize people even in their glorified bodies. Remember when Jesus reappeared to His disciples after He was crucified? Look at what the Bible has to say about that:

“On the evening of that first day of the week, when the disciples were together, with the doors locked for fear of the Jews, Jesus came and stood among them and said, "Peace be with you!" After he said this, he showed them his hands and side. The disciples were overjoyed when they saw the Lord.” (John 20-19-20)

It appears, by this passage, that the disciples recognized Jesus and were overjoyed. Next, look at what it says in the Book of Acts:

“After his suffering, He (Jesus) showed himself to these men and gave many convincing proofs that He was alive. He appeared to them over a period of forty days and spoke about the kingdom of God.” (Acts 1:3)

Obviously, Jesus was recognizable to everyone He came into contact with after He had risen.

There is also the story of the rich man and Lazarus in the Book of Luke, Chapter 16. Look at these passages:

"The time came when the beggar died and the angels carried him to Abraham's side. The rich man also died and was buried. In hell, where he was in torment, he looked up and saw Abraham far away, with Lazarus by his side. So he called to him, 'Father Abraham, have pity on me and send Lazarus to dip the tip of his finger in water and cool my tongue, because I am in agony in this fire. But Abraham replied, 'Son, remember that in your lifetime you received your good things, while Lazarus received bad things, but now he is comforted here and you are in agony.” (Luke 16:22-25)

It appears that the rich man, while in Hell can see and recognize Abraham and Lazarus, the poor beggar, in Heaven. It also implies that Abraham can recognize the rich man in Hell. Also, Abraham tells the rich man to “remember” the things in his lifetime which tells me that the rich man will have the memories of his life.

In Mark 9:4, the disciples somehow recognize Moses and Elijah when they were with Jesus on the mountain. Moses and Elijah presumably were in their “glorified” forms.

But, according to scripture, we also get “glorified bodies.” These are new bodies and are called “Heavenly bodies” according to 1 Corinthians 15:40 which says, “There are also heavenly bodies and there are earthly bodies; but the splendor of the heavenly bodies is one kind, and the splendor of the earthly bodies is another.”

After Jesus died on the cross many of the saints of God who had died before his crucifixion, rose in their bodies from their graves and were seen and recognized, presumably before they were taken up into heaven. They arose because their graves had been disturbed by what seems like an earthquake at the moment of Jesus’ death.

Jesus also said that we would be like the angels of heaven; well, what did they look like??? For one, they appeared and disappeared like Jesus. They appeared in human form like us; they ate, drank and talked like mankind. (Genesis 18 & 19) Sometimes they appeared in radiant garment like Jesus when He appeared on the mount of transfiguration. In the book of Revelation angels some times appear as giants standing astride great masses of land. (Am I confusing you yet?)

The Bible only gives us glimpses of what is to come and what our heavenly bodies will be like, and it remains one of the mysteries of our faith. But it seems to me from the little evidence we have in the Bible, we can rest assured we will know each other in heaven!