Exactly. I think one son was on the Foundation board of directors, but that was it, moreover his widow ended up selling out entirely and rather quickly, including the ranch itself.
Jacques wanted to move the collection down into the valley with easy access to the public, etc, but did not leave behind any instructions or funds for it, as he was not planning on death. There was also the problem of title to the vehicles, which he was transferring from himself to the Foundation, but was limited to 10 or 12 per year as I recall because of tax rules. Thus, only about 120 vehicles belonged to the Foundation the rest remained in his estate.
So it's a great irony that he built his collection in part from other collections on the demise of their owners [Budge for instance], yet proved unable to prevent the same happening to his own. Up in Puget Sound country, the late Paul Allen bought several choice objects from the auction, including the PzKW IVH, the Scud erector and rocket, the 8-ton SdKfz 7 and an M26 tank,among others for his Flying Heritage and Combat Armor Museum.