I have some newspaper articles although only a couple of the ones I have are the type that they are written by the newspaper's journalists.
One I have is a letter to the editor (in defense of Charles Russell) and other one is one of those "Pastor Russell Sermons" that some newspapers carried.
The "Pastor Russell Sermon" titled, "Overturned Until He Come" was published in the Twin Falls News on August 31st, 1911.
In this article he refers to the 2520 years ending on October 1914. The paragraph under the subtitle "The Time of the Gentiles" in the second column states:
When God removed the typical kingdom of Israel and His typical throne
in the world, He gave over the earthly dominion to the Gentiles; and
this lease of power, as represented in Daniel's prophecy, was to
continue for "seven times" - 2,520 years. In other words, during the
same period that Israel would be having "seven times" of tribulation
and subjection, the Gentiles would be having "seven times" of
prosperity; and both will terminate at the same time - in 2,520 years
from G.C. 606 - October, A.D. 1914.
This sermon is shown in the image below.
Another article is from The Lima Daily News, dated March 28th 1914. This article was written to address what some minister was saying in Canada that the world will end (as in "the earth will get destroyed") in 1914. This article also appeared in The Newark Daily Advocate on March 23rd, 1914.
I have copied some of the text below to provide a gist of what he wrote about world's end and 1914:
First column, second paragraph onward:
I was prompted in the selection of my text for today by reading an
extract from the sermon of a Canadian minister delivered recently. In
it he declared that 1914 would witness the Second Coming of Christ,
etc. His statement allowed for the inference that he holds the view
common to nearly all the creeds; namely, that the earth is to be
burned up and the human race blotted out; and that, incidentally,
Christ will come a second time, to see that none of the Church are
included in the destruction.
Mistakes of Dark Ages Being Corrected.
To my understanding, all such expectations are wholly unscriptural,
untrue, misleading, and hindrances in the right understanding of the
Fourth column, end of first paragraph onward:
If we have the correct date and chronology, Gentile Times will end
this year - 1914.
What of it? We do not surely know. Our expectation is that the active
rule of Messiah will begin about the time of the ending of the of
power to the Gentiles. Our expectation, true or false, is that there
will be wonderful manifestations of Divine judgments against all
unrighteousness, and that this will mean the breaking up of many
institutions of the present time, if not all.
This article is shown below.
I also had two that were written by the newspapers after the war had already started (Wikipedia gives 28 July 1914 as the start date).
One of these, titled "End of all Kingdoms" was published in The World Magazine on August 30th, 1914. The other one, shown below, was in The Fort Wayne Journal-Gazette on October 4th 1914 (a thumbnail of this page can also be seen here).
As a side note, the interesting part of this article was the below statement (in the fifth column, second paragraph) but only because it seems that overall people did not expect a war to start that year, let alone one that turned to be a World War.
And in 1914 came war, the war which everybody dreaded, but which
everybody thought could not really happen.