- Oram, W.
1865-11
- Oram, William H.
1853-05-28
- Oram, William Henry
1862-04
1864-02
- Orban, S.S., Alexis J.
1893-05-25
1893-06-05
- Orcel
1850-05-19
- Ordano, A.
1886-08-15
1887-12-10
1889-11-24
- Oreglia, Stephano Aloysius, Cardinal Prefect
1878-04-13
1880-11-26
- Orelly, John
1839
- Orengo, O.P., Luigi
1883
- Orhant, C.
1862-11
1864-01
- Orleans, Marguerite d'
1871-02-09
- Orphans of East Saginaw
1876-11-26
- Orsbach, Louise
1901-02-03
1901-03-24
- Orsi, Cristiano
1824
- Orso, Louise
1860-11-25
- Orsoni, Joseph Marie
1838
- Ortega, Josef de
1796
- Orth, Matthias
1868-01-07
1865-01
- Ortis, Eulalie
1843-06-25
- Ortlieb, George
1849-06-25
- Orton, W. Osgood
1900
- Orttl, Dean G. van
1837
- Orue y Gioruca de, Josef
1790
- Ory, Jean Jacques
1844-06-21
- Orzechowski, M. F.
O