Alexander Campbell was nothing more than a Sandemanian, a blind follower of Robert Sandeman (founder of the Sandemanian churches) and Archibald McLean (founder of the "Scotch Baptists"). At least, that's the contention of Professor William H. Whitsitt of the Southern Baptist Theological Seminary. Using several historical documents, including Campbell's own writings and his official biography, Whitsitt attempts to prove his case.
In response to Whitsitt's book, George W. Longan, a preacher of the gospel of Jesus Christ, wrote a complete refutation. Like Whitsitt, Longan uses Campbell's writings and biography to present his case, but also some other sources: the Bible, and the not-so-kind reviews of Whitsitt's book...reviews written by other Baptists.