Russell published an article with the title "THE RESURRECTION THE GREATEST OF MIRACLES" that appeared in the October 1914 Watch Tower [R5559 : page 314]
In that article he wrote:
Meantime, however, we might find illustrations to help us to understand. Take, for instance, the making of a record for the phonograph. Something went out of the mouth, and made little indentations on a cylinder of wax. Later on, from that very wax cylinder the voice of the speaker is reproduced. Now, then, if we know how to reproduce the human voice, it gives us a little illustration of how God, with His unlimited Power, can preserve everything recorded by the convolutions of our brain, and of how these could be preserved in the future absolutely --everything by which we could know ourselves in the future. We do not know ourselves by the number of pounds weight we are or by the difference in our beard. We know ourselves by something in our mind. But if our reason be gone, then we would not know ourselves.
Years earlier, in the February 1896 issue of The Watch Tower [R1935 : pages 27,28] , he wrote:
The Telephone, by which men hundreds of miles apart, may speak to each other through little boxes on their office walls, and recognize each other's voices, tells us, suggestively, that God can hear infinitely better, and without the wires and batteries necessary to our service.
The Phonograph, recording our words and tones, preserving them if needful for years, and repeating them with their original emphasis and intonation, reminds us, suggestively, that similarly our brains are much more delicately constructed, and can not only record words but also thoughts and feelings, and classify these, and lay them away for future use, subject to the call of memory. It gives us a hint, also, of how simple a matter it will be for God to resurrect the dead, by creating new bodies with brains having similar convolutions to the deceased, which, thus revived by the breath of life, would reproduce beings which would recognize and identify themselves by the memory of their past thoughts and experiences.
What does it matter to us if there will be beings in the future "with brains having similar convolutions" to ours?
Russell says that the resurrection process would "reproduce beings which woulod recognize and identify themselves by the memory of their past thoughts and experiences."
The key word is "reproduce".
The resurrected beings would be reproductions of the originals according to Russell's own words!
The Watchtower today still follows this conception of the resurrection that Russell's described over 100 years ago.