Michael Ryan Patrick Dempsey

Michael Ryan Patrick Dempsey (September 10, 1918 – January 8, 1974) was an American Catholic prelate who served as an auxiliary bishop of the Archdiocese of Chicago from 1968 to 1974.

Biography
Born in Chicago, Illinois, Michael Ryan Patrick Dempsey was ordained a priest for the Archdiocese of Chicago on May 1, 1943, by Archbishop Samuel Stritch. Before his appointment to the episcopacy, Father Dempsey was instrumental in creating the Catholic Campaign for Human Development.

On June 13, 1968 Pope Paul VI appointed him as the Titular Bishop of Truentum and Auxiliary Bishop of Chicago. He was consecrated by Cardinal John Cody on June 13, 1968. The principal co-consecrators were Bishops Ernest John Primeau of Manchester and Cletus F. O'Donnell of Madison.

He continued to serve as an auxiliary bishop until his death from a heart attack on January 8, 1974.