This is recorded in various Bible Student histories and personal accounts of those who were there. It's also recorded in some of the very early literature of that time.
Here are some other intersting quotations.
October 31, 1916 - Death of C. T. Russell
"A.H. MacMillan intercepted the telegram at the Brooklyn Bethel home and wired J.F. Rutherford, then at a convention in Oakland, Md., "The old man is dead." Rutherford returns to Brooklyn and assumes control." (Herald of Christ's Kingdom Special History issue 2003)
November 6, 1916 -
"Brother MacMillan, the brother approached Brother Hoskins at the time of Brother Russell's funeral in Pittsburgh, November 6, and only a few feet removed from the dead body of our Pastor, Brother MacMillan said: "Brother Hoskins, I have something to say to you that I know will hurt you very much, and I haven't any idea that you have strength of character sufficient to follow my advice; but I am going to tell you, anyway. I think every one of you Directors except Brothers Rutherford and Van Amburgh ought to resign and give a chance for some decent men who know something to be put in your places. There is not one of you fit to manage anything, and you ought to resign; and if you don't resign you will, every one of you, get kicked out." - Light After Darkness 1917
November 7, 1916 - St. Paul Enterprise
"Brother Driscoll, with whom I was a traveler all the way, said: "By the way, I was made a committee to see you and tell you to get nothing in the Enterprise till after it comes out in the Tower." It fairly stunned me, for I knew that the paper was printing. I said: "You are surely deliberate in telling me about it and now the wheels are turning." "Can't you stop them?" he asked. "I don't see how it is practicable now," I said, and later and on due reflection I told Brother Pyles that I shall not permit a little clique of self-constituted dictators to run my affairs." William Abbott -- Editor St. Paul Enterprise on why he chose to publish the news about Russell's death in his paper, The St. Paul Enterprise (a weekly Bible Student publication of the time), before it was printed in the Watch Tower.
January 6, 1917
"Rutherford insists on incorporating and passing new bylaws. He did this without allowing them to be read first." (See remarks August 1917 Boston Convention)