Thomas E. Finnegan

My grandfather was born in this town on December 19, 1872 to Thomas and Bridget Finnegan. He had brothers John and Patrick and a sister Sabina.
I am his grandson living outside San Francisco, CA. Would love more information on the family. We are coming to this area this September of 2017.
My father Joseph Finnegan was born in the USA in 1907. I was born in Boston, MA in 1941. We have an extended family in the states.