1877 - FIRST CHURCH BUILT (named St. Joseph's).
First Pastor assigned, Father John Smith.
1886 - Father Michael Cassidy becomes pastor.
Name officially registered as ST. PATRICK'S PARISH.
1891 - February 19, first St. Mary's Academy destroyed by fire before it was occupied.
1900 - Sisters of St. Francis open new St. Mary's Academy.
1903 - Knights of Columbus organized.
1910 - Present St. Patrick's church completed.
1916 - Present parish rectory completed.
1923 - Catholic Daughters, Court St. Michael, organized.
1927 - GOLDEN JUBILEE CELEBRATION.
1950 - Altar Society Organized.
1959 - Sisters turn operation of St. Mary's over to parish.
1962 - New St. Mary's High School built.
1965 - Febr. 16, Old St. Mary's Academy destroyed by fire.
1966 - New St. Mary's Grade School opens.
1970 - Renovation of altar implementing Vatican II.
First Extraordinary Ministers installed.
Legion of Mary organized.
1971 - Amelia St. Joseph made mission of O'Neill.
1977 - CENTENNIAL YEAR OF CELEBRATION.
St. Mary's School Foundation incorporated.
1982 - O'Neill St. Patrick's Church Foundation Incorporated.
1989 - Old St. Mary's convent converted to Parish Center.
1994 - St. Patrick's Church refurbished.
1995 - "Vision of the Future" endowment campaign.
2000 - St. Mary's celebrates 100 years.
"Vision 2000" Fund Drive.
2001 - Perpetual Adoration established.
2002 - QUADRO-CENTENNIAL OF ST. PATRICK'S PARISH.