Saint Thomas

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Diocese of Pittsburgh Shield

Mass Schedule:

Saint Marcellus

Sunday: 10:30 a.m.

Holy Days: HV 6:30 p.m.

Saint Thomas

Saturday Vigil: 4:00 p.m.

Weekdays: M/W 9:00 a.m.


Saint Thomas

Saturday: 4:30 p.m.; 1st Sat 12:00 noon

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Church Buildings: Saint Thomas:

30 Main St
Clarksville, PA 15322

Church Buildings:Saint Marcellus:

Route 188
Jefferson, PA 15344

Administrative Center:

30 Main St
Clarksville, PA 15322
Phone: 724-377-2588
Fax: 724-377-0707

Religious Education:

30 Main St
Clarksville, PA 15322
Phone: 724-377-2588


Rev. J. Francis Frazer, Moderator of Team Ministry
Rev. John M. Bauer, Team Ministry
Deacon Thomas W. Raymond, Deacon Administrator
Deacon Elbert A. Kuhns
Deacon James M Sheil

Additional Information:

Parish ID:


Open Date:


Neighborhoods Served:


Parish History

St. Thomas was established on March 19, 1947.  The history of the parish goes further back, however.  Before St. Thomas Church was built, local Catholics traveled to St. Michael, Fredericktown to attend Mass.  Beginning on December 6, 1929, priests from St. Michael celebrated Sunday Mass in various commercial halls in the area.  In 1935, work was begun on a church in Clarksville.  The cornerstone was laid on September 15, 1935; the date it was dedicated is not recorded.

From 1935 until 1947, the church was a mission of St. Michael.  In March of 1947, the parish became independent with the appointment of a resident pastor.  In 1952, St. Marcellus in Jefferson was made a mission of St. Thomas. 

The church was renovated in 1979, including the addition of the stained glass windows.  Two years later, a new organ was purchased for the church.

In 1992, St. Marcellus was merged with St. Thomas.  Both churches remain open and continue to serve the parish.

Photos From the Diocesan Archive:

St. Thomas Church, 1936
Altar of church, 1936
St. Thomas Church, 2002

File Attachments:

St. Thomas Parish Map, Clarksville.pdf129.83 KB