Well, Declan, it got even more confusing when use of "peoples" became acceptable, I think it was in the 70's or 80's. No need for apologies; I love looking this kind of stuff!:-)

The way I've always heard it, peoples possessive would have the apostrophe after the "s." However, the other day, I think it was here, I read that we should now write a possessive of a surname which ends in "s" as this example: Hess's, which may be applied to peoples also, I presume, making Greg right, too? At any rate it's a new one on me!

Thanks!

kat