Six Bishops were buried separately in a tomb located beneath the main altar. The remains of Bishop Tyler, the first bishop of Hartford, were returned to the Archdiocese of Hartford earlier in 2006. The remaining bishops: Bishop Matthew Harkins, Bishop Thomas F. Doran, Bishop Dennis M Lowney & Bishop William A. Hickey were interred with fellow priests in the clergy section at St. Ann Cemetery in Cranston.
The remains of Bishop Hendricken who was originally entombed in the crypt for 120 years was re-entombed on Friday, December 8, 2006 in a sarcophagus located to the right of the altar along the interior wall of the Cathedral. The sarcophagus is candeas green Brazilian granite and was obtained from Quality Granite in Pawtucket. Ten men carried the 2,100 pound sarcophagus into the Cathedral. The Bordeaux granite nameplate above the sarcophagus is also from Brazil. Louis Sciolto of Sciolto Memorials was the general contractor for the project. Fr. Anthony Verdelotti, Director of Catholic Cemeteries, designed the sarcophagus.