I remember watching "Who do you think you are" on BBC a year or so back.
It featured Alistair McGowan (good scottish name !!).
Turns out his ancestors lived in India.
He flew out there and met a whole community of "McGowans" living in India.
They were rather surreal, these Indians living and dressed like people from an English suburb.
Bit like the comedy show "Goodness Gracious Me" where they showed those Indian families trying to act English and speak with a "posh" accent.
http://en.wikipedia.org/wiki/Alistair_McGowan