Will we know one another in heaven?

In the 9th chapter of Luke, Jesus went onto a mountain to pray. He took Peter, John and James (three of his discilples) w/ him. While there He was visited by Moses and Elijah and they spoke w/ Him. The two Old Testament prophets were recognizable.

Yes. [Quran 52:21] And those who believe and whose seeds follow them in Faith,- to them shall We join their families: nor shall We deprive them (reward) of aught of their works: (Yet) is each individual is responsible for his deeds. The people of Paradise will know their dwellings in Paradise better than they knew their dwellings on earth. [Bukhari]. No one will be unmaried in Paradise. [Muslim]. The hearts of the Muslims will be as one in Paradise, they will have no problems. [Bukhari].