John O'Leary was an Irish separatist and a leading Fenian. He studied both law and medicine but did not take a degree and for his involvement in the Irish Republican Brotherhood, he was imprisoned for five years in England during the nineteenth century.
Biography
John O'Leary was an Irish separatist and a leading Fenian. He studied both law and medicine but did not take a degree and for his involvement in the Irish Republican Brotherhood, he was imprisoned for five years in England during the nineteenth century.
