Some smart observations. I think this looks to me like a program that became a carve out, Special Access Required, probably in early 1958. The document from the JFK Library was one in the hands of a private collector. Actually, it probably should have been classified "Secret" or higher. The nature of how they handled the President's classified fund (as Bull Gulley explained) made it essentially outside normal classification channels. LBJ and Nixon spent money from the fund for dubious purposes Congress probably never intended.
The JFK document wound up in the hands of a private collector. The Library bought it at auction. I believe when they say they funded the DUCC research starting in 1958, they meant it. The core concept of it's actually being built was/is probably TS-SAR with a code word. Just like the existence of a facility at Greenbriar itself (the concept) was unacknowledged. The last document you include here mentions that the earliest DUCC research started in 1962. However, we know from other documents and Gulley that every entry in that JFK doc. is probably genuine. The Peanut Island Shelter was classified at the time, but the document is not marked classified. The expenditure of funds for the PEF probably should have been classified.
The question is: do other documents from 1958-1960 pertaining to DUCC exist? Had I the funds and time, I'd send a copy of that JFK doc to the DDE Library or perhaps other entities with a FOIA request.
Specifically, I think the other declassified docs are protecting the integrity of the unacknowledged DUCC program and that the JFK doc is the real deal. Ted Gup's interview with Ted Kleisner is instructive. When you're dealing with a facility that officially doesn't exist, you've no other choice but to lie, if necessary, to protect the non-existence. "Hey, what's that giant blast door hinge doing there?" "What hinge? I have no clue what you're talking about."
Apparently, in the 50s they just didn't have the comms to make DUCC work. By the Carter/Reagan era, perhaps they did. I would find it hard to believe that the 1958 date in the JFK doc is the Only error and all else is correct. They screwed up. That document never should have gone to a private collector. It should have gone to the JFK Library. I'd bet good parts of it would still not be released, were that the case.
If Bill Geerhart or maybe Crytpome, someone able to do battle with the FOIA people, can do some digging, I think the answers are there.
--- In firstname.lastname@example.org, John Young <jya@...> wrote:
> In addition to the informative mentions of a DUCC cited
> earlier, these mentions:
> Construction of a DUCC at a depth of 3,500 feet(!) was recommended
> by DefSec McNamara in the FY1965 defense budget and again in the
> FY1967 budget (big files, URLs shortened by bit.ly):
> However, a 1980 Joint Staff historical report on worldwide command
> and control centers (1965-1970) states that the DUCC was
> indefinitely set aside in the FY1965 (despite McNamara's claim its
> cost was still "being refined" by USACE). The Joint Chiefs were
> "lukewarm" to the concept and preferred multiple, larger centers
> over a single small one (gotta admire the big-dollar planners):