O'Malley bụ ụkọchukwu nke Diocese nke Saint Thomas na May 30, 1984, site na Pope John Paul II. Ọ natara ya episcopal consecration na August 2 na-esote site Bishop Edward John Harper, na Archbishop James Hickey na Bishop Eugene Marino na-eje ozi dị ka co-consecrators. Ajụjụ: Gịnị bụ ọkwa James Hickey na chọọchị?
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