Dennis "Denny" O’Brien discusses his upbringing as part of an Irish-American family. His maternal grandfather came over during the Famine and settled in Tennessee. His paternal grandfather came over from a small town outside of Cork in 1912, to Omaha, Nebraska, where he practiced law. His father was an Army officer, so he spent much of his childhood overseas, including Japan, where he attended high school. He eventually settled in Charleston after marrying a woman who’s family has been here for generation. He’s been a member of the Ancient Order of Hibernia and belongs to a number of Catholic organizations. He discusses stories passed on to him by his father, particularly about political events in Ireland, and how the events framed a lot of the anti-British sentiment among the Irish, including members of his family. His family identified primarily as American Irish, rather than Irish-American, and that their Catholic identity was prioritized above their Irish background. The Catholic Church played an important role in his upbringing, and Catholicism is something he has tried to pass on to his children as much as possible. For him, his family is, first and foremost, American with Irish heritage. While he states that the Irish presence is stronger and “more militant” in northern cities such as Boston, he argues that there is a significant Irish culture and community in Charleston.