John Graham Lake (1870-1935) nació en Ontario, Canadá. Cuando era aún un niño, sus padres se trasladaron a Estados Unidos. A la edad de veintiún años se hizo ministro metodista; sin embargo, escogió comenzar un periódico en lugar de aceptar un ministerio en la iglesia. Cuando su esposa sufrió una grave enfermedad prolongada, fue milagrosamente liberada bajo el ministerio de John Alexander Dowie en abril de 1898. Esa experiencia alteró para siempre la dirección de la vida y el ministerio de Lake.
>John Graham Lake (1870-1935) was born in Ontario, Canada. While he was still a child, his parents moved to the United States. At the age of twenty-one, he became a Methodist minister; however, he chose to start a newspaper in Harvey, Illinois, instead of accepting a church ministry. In the meantime, his wife Jennie had suffered with a prolonged, progressively debilitating illness, but she was miraculously delivered under the ministry of John Alexander Dowie in April 1898. This experience forever altered the direction of Lake's life and ministry.
Lake is probably best remembered for his missionary work in South Africa, but his ministry in the United States was also powerful. One hundred thousand healings were recorded in five years at the Lake Healing Rooms in Spokane, Washington. Dr. Ruthledge of Washington, D.C., called Spokane "the healthiest city in the world" as a result.