Mary M Riordan, 78, Edgewater FL died Sunday, January 30, 2011. Mary was born in New York City and came to this area in 1978 from St Thomas, VI. Mary worked for many years for local radio station WSBB in advertising sales. She was a communicant at Sacred Heart Catholic Church New Smyrna Beach and enjoyed memberships in New Smyrna Beach Business and Professional Women's Club and Ponce Inlet Power Squadron.   She leaves to cherish her memory sons Henry Coyle, III, Richard Coyle, three grandchildren and four great grandchildren. She was preceded in death by her son Dennis Coyle.   Funeral Mass will be 11:00 AM Thursday at Sacred Heart Catholic Church New Smyrna Beach FL with Redemptorist Fathers officiating. The family will receive friends on Wednesday from 4 to 8 pm at Baldwin Brothers Heritage Place North Causeway New Smyrna Beach. Following cremation Mary will be buried at Forest Meadows Memorial Park in Gainesville.