Both Joshua and Joanna grew up in families of mixed religious expressions in Nigeria but committed their lives to Christ in high school and university respectively. Both trained as medical doctors and served with SIM for several years at Galmi Hospital in Niger before Joshua became SIM Deputy International Director for Europe and West Africa. In 2013, Joshua became SIM International Director while Joanna served as an Assistant to the Children's Ministry Champion, in member care and in the SIM International Archives. After stepping down from their roles in February 2024, they rejoined the SIM Niger team in October of that year, and are now based in Niamey, Niger. Joshua and Joanna are involved in Mission development and training in West Africa, Mission Resource Development in West and other parts of Africa, SIM Global Leader Development, and development of governance and Leadership in the two SIM Medical Institutions in Niger. Joshua also serves as the Global Director of Regions for Lausanne Movement for World Evangelization. Joanna is helping with SIM Med and serves as SIM Niger Short-Term Associate Coordinator.

"May God be gracious to us and bless us and make his face shine on us so that your ways may be known on earth, your salvation among all nations." Psalm 67:1-2 (NIV)

"For to me, to live is Christ and to die is gain." Philippians 1:21 (NIV)

"Not that we are competent in ourselves to claim anything for ourselves, but our competence comes from God." 2 Corinthians 3:5 (NIV)