Bishop John W. Shanahan proposed at a diocesan synod in 1902 that a permanent cathedral be built in the diocese.

A committee was formed and they accepted the plans of Philadelphia architect George I. Lovatt, Sr.

[3] The original pulpit featured carved figures that were patterned after a fresco found in the Roman Catacombs.

An inscription was added to the lower part of the dome which reads: "Behold, I am with you all days, even to the consummation of the world.

"[3] The shrines of the Blessed Virgin Mary and Saint Joseph were given chiaroscuro backdrops.

The Stations of the Cross were created in simulated bronze with gold highlights and were recessed in the wall.

The tabernacle was placed at a new Altar of Repose, a new ambo (pulpit) was installed, and the cathedra (bishop's chair) was relocated to a more central position.

Bishop John W. Shanahan is honored with a bronze crucifix, which was placed in the rear of the cathedral.