@Spade:
And, with the end of A.D. 1914, what God calls Babylon, and what men call Christendom, will have passed away, as is already shown from prophecy." Studies In The Scriptures, Vol. III, (1897)
"...we consider it an established truth that the final end of the kingdoms of this world, and the full establishment of the Kingdom of God, will be accomplished by the end of A.D. 1914" (1889).
"In the coming 26 years, all present governments will be overthrown and dissolved." Studies in the Scriptures, Vol. II, (1889)
"The Gentile Times prove that the present governments must all be overthrown about the close of A.D. 1915; and Parallelism above shows that this period corresponds exactly with the year A.D. 70, which witnessed the completion of the downfall of the Jewish polity." The time is at hand (1915)
"...in the year 1918, when God destroys the churches wholesale and the church members by millions, it shall be that any that escape shall come to the works of Pastor Russell to learn the meaning of the downfall of Christianity." The Finished Mystery (1917)
"...there will be a resurrection of Abraham, Isaac, Jacob, and other faithful ones of old ... we may expect 1925 to witness the return of these faithful men of Israel from the condition of death, being resurrected and fully restored to perfect humanity and made the visible, legal representatives of the new order of things on earth.... Therefore we may confidently expect that 1925 will mark the return of Abraham, Isaac, Jacob and the faithful prophets of old, particularly those named by the Apostle in Hebrews 11, to the condition of human perfection." Millions now Living will Never Die (1918)
"According to trustworthy Bible chronology six thousand years from man’s creation will end in 1975, and the seventh period of a thousand years of human history will begin in the fall of 1975 C.E." Life Everlasting - In Freedom of the Sons of God (1966)
"…six millenniums of mankind’s life on earth would end in the mid-seventies. Thus the seventh millennium from man’s creation by Jehovah God would begin within less than ten years…. In order for the Lord Jesus Christ to be ‘Lord even of the sabbath day,’ his thousand-year reign would have to be the seventh in a series of thousand-year periods or millenniums…." Life Everlasting - In Freedom of the Sons of God (1966)
"Reports are heard of brothers selling their homes and property and planning to finish out the rest of their days in this old system in the pioneer service. Certainly this is a fine way to spend the short time remaining before the wicked world’s end." Kingdom Ministry, May 1974, p. 3
However later
"Did Jesus mean that we should adjust our financial and secular affairs so that our resources would just carry us to a certain date that we might think marks the end?… This is not the kind of thinking that Jesus advised." The Watchtower, July 15, 1976, p. 440
Compare Deuteronomy 18:20-22
Please make sure you get the originals of all the publications mentioned above. Some of Russell's writings were altered in later editions of the books and some books (such as Life Everlasting) are not available in your WTLIB or local congregation library.
Guess where this came from:
"The Witnesses had long shared the belief that the Thousand Year Reign of Christ would follow after 6,000 years of human history. But when would 6,000 years of human existence end? The book LifeEverlasting—InFreedomoftheSonsofGod, released at a series of district conventions held in 1966, pointed to 1975. Right at the convention, as the brothers examined the contents, the new book triggered much discussion about 1975."
"Unfortunately, however, along with such cautionary information, there were other statements published that implied that such realization of hopes by that year was more of a probability than a mere possibility."