O'Grady, John Patrick age 95 of Rochester, MN, former USN submarine commander and school principal and administrator died October 22, 2016 in White Bear Lake, MN. Survived by son, Kevin (Beth Samuelson) and two grandchildren of Stillwater, MN; also two brothers Thomas, James and sister-in-law Ruth (late Michael Joseph) of Chicago and numerous cousins, nieces and nephews. In addition two step-grandchildren, Leonard Franklin and Terese Samuelson and seven step-great grandchildren survive. Preceded in death by wife, Elizabeth "Betty" (Speltz), a brother, Michael and sister Veronica O'Malley. Funeral Mass 11:30AM Saturday, Oct. 29 at The Church of St. John the Evangelist, in Rochester, MN. mackenfuneralhome.com