LEWISTON — Bishop Robert Deeley will celebrate a Memorial Day Mass on Monday, May 30, at 10 a.m. at St. Peter’s Cemetery on 217 Switzerland Road in Lewiston. All are invited to this Mass, which is an occasion to pray for all our deceased loved ones, especially those who served our nation and have now gone home to the Lord. The origins of Memorial Day date back to the Civil War when many cities and towns would set aside a day to remember those who died in the war.