Delvyn practiced clinical hematology/oncology for 32 years and is a regular contributor to the Reflections column of the Portland (Maine) Press Herald. He directed drama ministry for 20 years at his Portland church and now does the same at First Presbyterian Church, Bonita Springs, Fla. His play Kabul Screams had an Off Off Broadway production in 2012, and his play Whose Rite? is scheduled for production at the Boston Theater Marathon in May 2014.