Josef Odvárka * 1936 Victims of church persecution in 1948-1989 9. 5. 1960 - Amnesty of political prisoners
Viktor Olos * 1927 Political prisoner in the 1950‘s (ČSR), Victims of church persecution in 1948-1989, Catholic clerical 1948 - 1955 - Politic lawsuit in the Stalin age
MUDr. Anna Ondračková * 1959 The topic of security forces before 1989, Member of an Illegal Church, Witness of local events from the Communist era
Prof. ThDr., Th.D. Dušan Ondrejovič * 1930 Representative of the Church, Lidé pomáhající partyzánům během 2. svět. války, Non-Catholic clerical, Participant in the Slovak national uprising 29. 8. 1944 - April 1945 - The Slovak National Uprising, 8. 5. 1945 - End of WWII, 25. 2. 1948 - Communist coup d‘état in ČSR, 31. 12. 1992 Dissolution of Czechoslovakia
Mons. doc. Ing. Mgr. Aleš Opatrný , Th.D. * 1944 Representative of the Church, Vicar without State agreement, Catholic clerical, Witness of local events from the Communist era, Examinee of the State Secret Police – enemy person and 2 more categories 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia
Mgr. Jan Opočenský * 1949 Representative of the Church, Non-Catholic clerical, Repatriated, Member of the 1st Czechoslovak Army Corps (General Svoboda's army), Witness of local events from the Communist era and 1 more categories 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation , 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia
Ing. Jaroslav Orawski * 1937 Representative of the Church, Victims of church persecution in 1948-1989, Witness of local events from the Communist era 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia
Stanisław Orzechowski * 1939 Poland, Catholic clerical, Anti-communist protests in Czechoslovakia in Milevsko and Sedlčansko 26.8. 1980 Solidarity strike in Wroclaw , 28.8. 1980 Holy Mass for strikers in the bus depot in Wrocław
Karel Otčenášek * 1920 †︎ 2011 Political prisoner in the 1950‘s (ČSR), Political prisoner in the 1960‘s (ČSSR), Representative of the Church, A cultural celebrity, Catholic clerical 13. – 14. 4. 1950 – "Action K" – forceful concentration of Czech monks
Jiří Otradovec * 1933 Member of an Illegal Church, Relative of a political prisoner, Witnesses of local events connected to WWII, Witness of local events from the Communist era 1944 - 1945 - The liberation of Czechoslovakia, 8. 5. 1945 - End of WWII, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia