Died February 24, 2015 at the age of 80.
Fr. Cassidy was born May 27, 1934 in Ireland and was ordained to the priesthood on May 28, 1960 for the Diocese of Madison, Wisconsin. He served in cities throughout the diocese from 1960 to 2002. He also served as the State Chaplain for Law Enforcement and as the National Chaplain for the Elks Fraternal Organization in Wisconsin. Fr. Cassidy retired, as a snowbird, to Sun City, in 2008.
Services were held March 6, 2015 at St. Elizabeth Seton Parish in Sun City. Fr. Cassidy is buried at St. Francis Cemetery.