Adam, it does appear to me that the green has been moved forward. It looks like it may have been originally just beyond and a little to the right of the dogwood in the recent photo.
I wonder what they were thinking when they were tinkering around with this hole - and a lot of other holes in Pinehurst. Some holes they modified so they could cram in houses and condos. That does not appear to be the case here. Even if I was was a renown architect I'm pretty sure I would not move around Ross greens. Easy for me to say that. If a club offered one a sizable comission to do such a thing it would be a test of character. Would you turn that down if, say, you needed the money to send your child to a nice school?
I'll show you another example of how they modified the original #3 Course that was not apparently because of real estate development.
This is the 1922 drawing of what is now the 3rd hole. Originally it was the 10th hole. As you can see, there was water at the bottom of the hill. That is where we drive it today because they have taken the water away. The dynamics of the hole are obviously greatly changed.
As it is today looking back from the 4th tee:
Also, Jon you are right. The Mandell book is by far the best about the area. If you were going to get one book about the area that would undoubtedly be the one to get.