
Bp. Benedict Flaget of Bardstown celebrated the first Mass in what was then the tiny settlement of Cincinnati in 1814. The town prohibited the construction of a Catholic Church, so the first one was built just outside its boundaries, the year following the erection of Cincinnati as a diocese. Shortly after Edward Fenwick became the first bishop, the anti-Catholic ordinance was lifted and the log church was rolled to a new location within the town. In 1850, Cincinnati was made an archdiocese.
Archdiocese of Cincinnati * Catholic Encyclopedia
J. White, Faith and Action: A History of the Archdiocese of Cincinnati, 1821-1996
R. Fortin, Faith and Action: A History of the Archdiocese of Cincinnati, 1821-1996
J. Lamott, History of the Archdiocese of Cincinnati, 1821-1921
M.E. Hussey, A history of the seminaries of the Archdiocese of Cincinnati, 1829-1979