Dominick O'Byrne (1793-1850) was a lumber merchant and Alderman in Savannah, Georgia. He married Margaret Gillespie (ca. 1804-1878). They had three children: Dominick Austin O'Byrne (ca. 1830-1896), John F. O'Byrne (ca. 1845-1873), and Josie O'Byrne (ca. 1842-1873). Dominick A. O'Byrne was a Judge of the Court of Ordinary in Savannah. He married Josephine Ellen Clements (ca. 1835-1876); they had the following children: Ida (Sister Mary Dominica O'Byrne), Marie O'Byrne Altick (ca. 1863-1936), William C. O'Byrne (ca. 1870-1915), and Josephine O'Byrne (1872-ca. 1969).
From the description of O'Byrne family papers, 1799-1926. (Georgia Historical Society). WorldCat record id: 173482400