Lawrence Edward "Larry" O'Rourke, 81, of Leonardtown, MD died, Saturday, October 16, 2010 in St. Mary's Hospital, Leonardtown, MD. Mr. O'Rourke was born December 21, 1928 in Philadelphia, PA, the son of the late Edward and Sue McGraw O'Rourke.

He was the loving husband of Katherine Elizabeth Dempsey O'Rourke whom he married on December 31, 1960 in Cumberland, MD.

Mr. O'Rourke is also survived by his children; James Patrick O'Rourke (Angela) of Manassas, VA, Lawrence J. O'Rourke (Rosemary) of Los Angeles, CA, Mark Kevin O'Rourke (Elisa) of San Diego, CA, John Clifford O'Rourke (Suzanne) of California, his four grandchildren and two great grandchildren. In addition to his wife, children and grandchildren Mr. O'Rourke is survived by his sisters; Rosemary Sweeney (Bob) of Philadephia, PA and Bernadette Lyons (Paul) of Vienna, VA.

Mr. O'Rourke was a Gonzaga High School, Washington, DC graduate and attended the University of Maryland, College Park, MD and The Catholic University of America, Washington, DC. He joined the United States Navy on June 23, 1948 and served his country for 5 years before his separation on September 25, 1953. Mr. O'Rourke was a Market Developer for Mobay Chemical Company, Pittsburgh, PA for 15 years before his retirement in 1977. He was a licensed ham radio operator and he enjoyed training Bird Dogs (Springer Spaniels).

Funeral services for Mr. O'Rourke will remain private. Contributions in Memory of Mr. O'Rourke can be made to the Alzheimer's Foundation of America, 322 Eighth Avenue, 7th Floor, New York, NY 10001.

Arrangements provided by the Mattingley-Gardiner Funeral Home, P.A.