What the WTS leaves out is the group that left in 1909....
New Covenant Believers[edit]
On October 24, 1909 former Society secretary-treasurer E.C. Henninges, who was by then the Australian branch manager of the International Bible Students Association, based in Melbourne, wrote Russell an open letter of protest trying to persuade him to abandon the teaching and calling on Bible Students to examine its legitimacy. When Russell refused, Henninges and most of the Melbourne congregation left Russell's movement to form the New Covenant Fellowship Hundreds out of the estimated 10,000 US Bible Students also left, including pilgrim M.L. McPhail, a member of the Chicago Bible Students and A. E. Williamson of Brooklyn. The dissidents formed the New Covenant Believers. In 1908 they began publishing "The Kingdom Scribe", which ceased publication in 1975. Since 1956 they have published "The Berean News", a small newsletter. The founding group is now known under the name Berean Bible Students Church in Lombard, Il.[4]
https://en.wikipedia.org/wiki/Free_Bible_Students#New_Covenant_Believers (I've visited this church)