Although Matthew 22:30 indicates that earthly relationships like marriage will not be the same in heaven - we will definitely recognize those we knew on earth.
The story of Lazarus and the rich man, in Luke 16:20, shows we will still retain our identity and relationships in heaven. The rich man still remembered his siblings - and Lazarus, whom he knew on earth.
Jesus' heavenly state did not conceal his identity, either. Mary, Peter and others who knew Him before He died all recognized him after he was raised. (Luke 24, John 20 and John 21) Paul recognized him even though he had never seen him before. (I Corinthians 15:8)
Bretheren lets hear your views. Will we recognize loved ones in heaven?