Print This Send to a Friend Christian Stronghold BCTraining Extension Location Location: Philadelphia, PA Click for Website Address: 27 W. Township Line Rd., Upper Darby, PA 19082 Phone: 610-449-8112 Contact: Dr. Willie Richardson Email: info@crdonline.org As always, Christian Research & Development is committed to developing materials that educate and motivate people to live lives that glorify God. Our mission is to serve you by producing resources to develop church ministry, single and family life.