Researching grandmother's family in Glanworth, Sept, 2013

I am visiting Glanworth in mid September, and would like to know if I have any relatives who may be  able to tell me about my grandmother or her family. My grandmother's name was Marianne, she had a sister named Margaret, and a brother named Maurice, and additional siblings which I do not have names.   I know her family owned Dinneen's Pub in Glanworth, which now has another name.  Can you help me? I am writing a book about our family to share with my children, nieces and nephews, siblings, and many cousins, and would like to gain as much information as possible.  Thank you!