I only know his name but this Michael Brennan donated $5 to Famine Relief in Ireland during the American Civil War. Many thanks to Damien Shiels for his groundbreaking research. You can read more and check for other family names at the link below.
PS If this Michael Brennan belongs in your family tree, please write in and let us know.
I'm a Brennan with clear roots in Clawinch Island, Co. Longford (on the Shannon) Brennan Family Clawinch, Co. Longford and possibly in Kilteevan, Co. Roscommon. As a child my father's people told me that our family came from Kilkenny originally and that Cromwell threw us out. This story has intrigued me all my life and of late I have begun to collect information about Brennans the world over. If you have Brennans in your family, you are cordially invited to join me and maybe we will get to the root of this family story, or maybe not...