Sixty-six centenarians, born the same year America entered World War I, were honored at Delaware County’s 15th annual Centenarian Birthday Luncheon, 11 a.m. Wednesday, May 17, at the Drexelbrook Events Center in Upper Darby.For this year’s event, 184 centenarians were identified in Delaware County and 66 were able to attend the luncheon at the Drexelbrook. Centenarians who could not attend were visited by COSA staff and presented with a proclamation.