This group was formed in 1924 in conjunction with the Church Missionary Society to aid those living in the Hausa region of Northern Nigeria.
The religious goal of both Cook and the mission group was to expose and convert the Muslim population of Zaria to Christianity.
Medically, he and the mission group strove to build hospitals and proper dispensaries to provide, care, and treat the Northern Nigerian communities.
[1] Although the mission site was already initiated in Wusasa at the time of Cook’s arrival, he continued the efforts from the former medical missionaries in treating patients within the newly developed hospital and built a sisters quarters.
[5] The dispensary was in Maska, Northern Nigeria, which was a walled town with a predominantly Muslim population composed of approximately 2000 individuals, 600 of whom being children.
[8] Cook also initiated the training of women within the mission society in midwifery and assistance in procedures, such as ulcer treatments.
[3] Cook is remembered for his enthusiastic outlook on medicine, Christianity, and the spread of such beliefs to those living in Northern Nigeria.
[3] Cook's impact on Northern Nigerian communities was used as training material medical missionaries traveling to India in the late 1930s.
[12] From a medical standpoint, his treatment and creation of dispensaries and hospitals set the standard for higher quality care in Northern Nigeria.