Terry said, "Jehovah's Witnesses under Russell and JW's under Rutherford..."
Actually, there were NO "Jehovah's Witnesses" under Russell. The name "Jehovah's Witnesses" was coined by J. F. Rutherford more than a decade after Russell had died. But we know what you mean; some of Russell's "Bible Students" stuck with JFR and became JWs. Many did not. Families were split over the issue. One example is the family of W.E. vanAmburgh, who was secretary/treasurer of the WTB&TS. His brother and his brother's family remained Bible Students and at least some of their children are Bible Students today.
Another point - if JFR really knew and followed his Bible, he would have named his followers "Hepzibah." I'll let each of you figure out why for a day or two.
Fortunately for me, I have an advantage that many here do not: upon completion of my ordination as a SUB-GENIUS, I was granted the ability to pull the wool over MY OWN eyes. Join me! Salvation is only $35 away!