Mark: ECCC had a course on this property before the present Raynor/ Banks East, and what was the West courses (the West was sold off) were built. It was a Tillie course - pretty rudimentary.
The present course, what was once the East course, now the Essex County CC course (the name a bit misleading because it is not a "county" course but is private and has always been ..... (continuing...) the present private course and the original West courses were built by Charlie Banks .... however .... the East was designed by both Raynor and Banks but Raynor died and Banks actually built the course.
The club rebelled with just Banks' name and not the Raynor name at the time, claiming Banks's was not the stature of Raynor but Banks had a contract and would not let them out of it. He told them that if they were happy with the East course he would continue with the second course, the West. If not he was out of there.
All went well and he actually designed the entire second course himself - which was a really fine course, at least as good as the East (originally), if not better. I played there for nearly 20 years.
So today's private club: designed by both, built by Banks according to their plan ......... again, a "however" - the club "shorted" Banks, not allowing all the 143 bunkers to be built - only about 83 were built.
OK, about the Tillie greens:
The club also insisted Banks use some of the old Tillie greens - yes, 1 thru 6 + the 9th (plus he had to use a few on the other course also). I'm sure Banks reworked the 1st, not the 2nd (although I would guess he played with greenside bunkers there), the 3rd, the 4th and 5th but the 6th is a Tillie-style Redan and the 9ths is certainly not the work of Banks.
From what I understand about Seth Raynor - I doubt if he would have stood for this. He was pretty tough about that stuff. Banks, now on his own and basically not much more than a rookie, was fighting to keep their company going. He was also building Rock Spring right down the road a bit.
I think Banks kept those fairways first 6 fairways but probably expanded the greens.
When you played ECCC you would see the first 6 holes didn't look like typical Raynor/Banks ..... but when you got to 7 and on (excepting the 9th) you get full-out Raynor (Banks). Some excellent greenside bunkering. Lots of really god holes there.
The lineage of the club is well documented and there is a lot of material, all of which I have. You might want to get a copy of their Cl/history if you're that interested (e-mail me and I'll give you the contact, if you like). Friend Billy Quirin (Golf Courses Of the Met Area) wrote the history.
I have the original Raynor Banks concept drawing with all the bunkering which served as the guild for the fine Gil Hanse Master Plan (I helped a bit with the bunker phase).
The 80-some odd present bunker are completely restored (thank you for the kind words) and now it appears I'll be getting my wish-list of strategic bunkers that never got put in, which will really add greatly to this great course - these are all fairway bunkers - greenside is as per original plan.