Danny, I really can't say what the actual impact was in 1909, I agree with Jim's thoughts, the only thing that was organized was the Watch Tower itself, the congregations were all independent.
I do know that E.C. Henninges, M.L. macPhail and others who were very prominent BIble Students causes one of the biggest schisms in BIble Student history, second only to what happened in 1917.
Henninges was branch manager of the Society in Australia and MacPhail was in Chicago and there were some in New York. Henninges bagan the New Covenant Publishing, publioshing books, booklets and a journal "New Covenant Advocate."
It should be noted that Henninges accepted EVERYTHING C.T. Russell taught up to 1909, he differed mainly on the New Covenant, but he accepted the chronology, the presence, etc. The New Covenant Publishing folded in the 1930s with the death of Henninges.
The New Covenants groups today do not resemble anything of their 1909 counterpart.
Also RR you mentioned that the 'Dawn's' were instrumental in getting WBBR going. Since my father was the radio station engineer at that time. He was involved from the very start, putting up the broadcast tower and building the facility.
If you notice the Society ALWAYS refers to their radio show by the call letters, WBBR. This can be seen from the 1924 program pictured in the Proclaimers book on pages 80-81 [btw, John T. Read left the Society to joined the Pastoral Bile Institute, and became its editor for some ten years, he died in August 1978 at age of 101.]
Norman Woodworth of Rutheford, New Jersey created the radio show for the Society, it was a dialog between two Bible Students, discussing an array of Biblical topics, the name of the program was "Frank and Ernest." Apparently even while the judge was making changes Woodworth was still preaching Russel's Divine Plan. One day Rutherford tuned in and was upset at what he heard, so he called Woodworth into his office and handed him a manuscript and told him, "from now on I will write the show." That was the last straw and Woodworth left the Society and took the radio show with him, that was in 1928, he tried offering to the PBI, but they were not interested, so he and the Associated Bible Students of Brooklyn, NY formed the Bible Students Radio Committee, and they began airing the "Frank and Ernest" show while the Society via WBBR went on to just airing the Judges sermons. The radio program was influential in gathering the old timers of the Society who listened in and heard what they call "the old old story." In 1932 the radio committee became the Dawn Publishers, publishing the Dawn magazine and others books and booklets, in the 1940s they left Brooklyn and moved to Rutherfod, NJ under the name Dawn Bible Students Association, where they remain. The Dawn was instrumental in gathering a lot of the disgruntled JW's in the 1930-50s.
RR