n Thursday, February 25, 2010; the beloved husband of Patricia C. Ahearn; father of Marie Penny, John L. III, Joseph P. and James E. Ahearn; brother of Dr. Marie Lucy Ahearn; grandfather of Kathleen Fus, Blaise, Molly, Charlotte, Rachel and Kristin Ahearn. Family and friends are invited to Mr. Ahearn's Life Celebration on Thursday, March 4, 2010 from 10:30AM until Mass of Christian Burial at 11:00AM at St. Columba Catholic Church, 7800 Livingston Rd. Oxon Hill, MD. 20745. Interment private. In lieu of flowers, contributions may be made in his memory to Lombardi Cancer Center at Georgetown University Hospital.