Today I'd like you to further consider what was actually stated in that 1936 article that you view as irrelevant.
It stated, "The Beth Page Park layout was built with government funds and Public Works Administration labor. Tillinghast said the new setup probably would be operated along the same lines, at least in part."
As you are aware, this statement was made after it was announced at the PGA's annual meeting that a partnership between the PGA & the government had been reached in which the PGA would provide consulting services to those communities who were interested in building municipal golf courses with public funds.
Do you know what Tilly did just two days after the meeting in CHicago? He CHANGED his itinerary and headed to Virginia where, on 11/27, he met with state engineers to consider the design of a golf course at Hungry Mother State Park. He spent one day on the site. He described Hungry Mother as presenting an "extremely rugged but scenically beautiful face. The plan of any course is not obvious at first glance, but after a critical study I was prepared to assert that eighteen holes may be developed there, which will not involve unusual problems of construction, and which will provide not arduous golf. Exaggerated features may also be avoided. The course may be very worth while..."
He would leave them with not only a design in hand, but "an alternate one as well." In fact, he instructed these two gentlemen, "R.E. Burson (Director of the Parks of the State of Virginia) himself a landscape engineer of long and distinguished standing... C.C. Lincoln Jr. of the city [Marion, Virginia]" to provide him with a contour plan showing five foot elevations and the suggested plan of the course from which he would send his "notations, corrections and any suggested improvements..." he would receive these, but unfortunately the course would never get built as the public funds were denied.
The point is that tilly designed two courses on a rough site in a single day.
You make a rather large point in refering to Tilly's contract which called for him to be on site for 15 days, as if that wouldn't have been sufficient time for him to design the courses at Bethpage. Now without going into detail on that point, for Tilly was there many more than 15 days and I'll show you that later, it would have been quite easy for him to design all three new courses and redesign the existing 4th course in that time frame as shown by what he did at Hungry Mother in Virginia. In fact, and you as a student of the history of golf course architecture are quite aware, that many fine, and even a few great courses were designed by Tilly, Ross and others who spent but a day or two on their site. This was a quite common occurance in the early years, especially if they weren't overseeing the actual construction. In fact, isn't that why they would often times include plasticine models of hole and green complexes from which the course constructors could refer? And yes, Bethpage had models on site as well, the most prominent being the scale-model of the entire project showing every hole in great detail that was displayed in the lobby of the newly-opened clubhouse for a number of years.
So my question then is, WHY do you believe that 15 days on site (if that is all he was there for) were not enough time for Tilly to design the courses at Bethpage when it was actually a routine amount of time for him to do so?