Dudley Marvin Canright was a Seventh-Day Adventist pastor of 22 years and close friend of James and Ellen White, who later left the church and became one of the first open critics of the movement. He joined the movement at 19 in 1859 and worked his way up to the General Conference level. In 1887 he left the Seventh-day Adventist Church due to a number of doctrinal concerns which drew strong criticisms and responses from the Adventist Church.
He eventually wrote a number of books including “Seventh-Day Adventism Renounced”, “Life of Mrs. E. G. White” and “Sunday Observance in the First Centuries”. While the Adventist Church has tried to characterize him as an angry, bitter and resentful critic, many have found him to be an insightful primary source to the early days of the Seventh-Day Adventist Movement who has close ties to the White family.
For an in-depth discussion on this, watch our discussion with former Adventist professor and pastor Dr. Steve Daily.