Peoria Catholics plan a weekend Mass to mark the next step in an effort to canonize a local archbishop.

Advocates who want the late Archbishop Fulton Sheen made a saint have finished an investigation into a miracle they attribute to the Illinois native. They will box and seal the investigation during a Mass on Sunday at the Cathedral of St. Mary of the Immaculate Conception in Peoria before sending it to the Vatican.

Believers say Sheen interceded to save the life of a stillborn baby at a Peoria hospital in September 2010.

Sheen is entombed in New York, where he spent much of his career and gained fame for his radio and television commentaries.

The effort to canonize Sheen has been ongoing for about a decade.