I am afraid your a little late about preserving Joe Grants Cay, the government just sold the cay to a large resort developer who will be building a Parrot Cay style resort.
I live on Middle Caicos and look forward to the development and creation of jobs for my native friends..
Please feel free to visit my site,
www.caicosproperties.tc to get a little history of these islands and perhaps of your grandmothers heritage.
In addition, please feel free to ask for any other information. I will be back in the islans next week and will do a little research for you.
What was your grandmothers maiden and married names ??
Regards
Dick Zebo