Of ALL the stones, I don't know, but of quite a few yes. They left "footprints" in the chalk base of their stone holes. I'm sure Mike Pitts' "Hengeworld" mentions this, as well at the expensive Stonehenge tome by EH. As long as the stone holes were excavated correctly, then all that is required is to fit the correct stones to the correct "Footprints". Easy, eh? Don't know what all the fuss is about.
Cheers,
TE. (;^D)