The DEF Secretary is Kingsley Nnamdi Offor, formerly of Aggrey House, while he was at Grammar School, graduating in 1972. He is a retired banker and database engineer with degrees in finance, banking, economics, politics, and law. He would later earn an MBA and a PhD in international finance. He has served as president of the DMGS Alumni Association of North America and, in what must count as a testament to his extraordinary capacity for compromise, was simultaneously elected vice-chair of Christ the King College (CKC) alumni association in New York, CKC being historically a rival secondary school. He would also win the Justice Anomnachi Award from the DMGS National Alumni Association in 2010 for his services to Grammar School. Even in retirement, he serves as a director of Ukwala micro-finance bank at Obosi. He is among the Ndi Ichie cabinet of the Igwe Obosi as the Ubom Oshimili Dikemba Obosi. He is married with four children and eight grandchildren (and counting). He actively enjoys soccer, basketball, lawn, and table tennis.