Calvert Francis Han (621) was born in Croydon, Surrey in 1970
I believe Calvert Francis trained as a Doctor and that he now works as a GP in the Merrow Park Surgery, Kingfisher Drive, Guildford, Surrey, GU4 7EP
I also think that he married Dr Larisa Jane Robins (622) who is also a doctor working in the same practise. It would be too much of a coincidence for two people with the surname Han could both have graduated as doctors in the same year from the same university!
I believe they have two children:
Joshua Jordan R Han born 2000
Esther Mariella Han born 2002