Gerrit Loesch has been anointed since the 1970s. I'm sure some of the others partook that far back too.
Sure in the video where Splane expalined the overlapping generation the example he used was Fred Franz overlapping with, who? Those anointed before 1992 when Franz died.
Antony Morris wasn't long back from Vietnam in 1975. In fact I don't think he was even a JW when the "Freedom of the Sons of God" book was published.