little-Socrates, I would estimate that there has been over 144,000 Watchtower/JW partakers.
In 1925 there were . About 60% of these people left when 1925 did not eventuate.
90,434 in 1925"
Watchtower 1960 May 1 p.282
In 1935, when the doctrine changed, there were 52,000 partakers.
"Year ...... Att. ...... Part.
1935 ...... 63,146 ... 52,465"
Jehovah's Witnesses - Proclaimers of God's Kingdom p.717
In 2014, there were 14,121.
Therefore 54260 (60% of 90434) plus 52,465, plus 14121 already equals 120846. That does not count all the partakers from the 1800's, and the ones between 1935 and 2014 that were not included in any of these figures and have already died.