Jay,
First and foremost, we need to be careful on what we post about what we do and don't know!!!!!
Garden City is not an untouched Emmet as the on again off again Mr. Macwood has pointed out.
Emmet's original bunikering scheme was quite rudimentary (heavy on geometric cross / cop bunkering) and the bunkers that are in place now have been more than just deeped on the Emmet / Travis holes that are there. Additinoally, the greens bear very little resemblance to the typical Emmet greens you will see on courses that I have listed below.
Also never in my research of Emmet or anything that I have read was Emmet inspired by Seth Raynor - especially from an individual that was a founding member of NGLA and helped CBM research the great courses of the British Isles that he used for his template holes!!!
The Emmet courses that have a good amount of Emmet left to be seen are:
Huntington CC
Wee Burn (bunkering redone recently by Fazio - have not seen it post redo)
McGregor Links GC
Leatherstocking GC
The Powleton Club
Belmont Hills CC
St. Mary's CC
St. Georges CC
For now that will suffice as a good list of Emmet courses with a lot to be seen.
Chris