Tom,
Now you're really stretching it.
The basic question of your thread is this; what would a club looking to build a new course in early 1910 have out there as models of excellence in US golf? Right??
Your list includes a ton of either start-ups, or major revisions that happened in 1910, and as they were brand-new certainly wouldn't have been considered by any club in question. Furthermore, when Vardon saw them, they had another 3 years of development, which in these fledgling years, may as well been a lifetime.
Atlanta Athletic Club - T.Bendelow (1908), H.Barker (1910)
Beverly - G.O'Neil (1908)
Chicago - CB.Macdonald/HJ.Whigham/J.Foulis (1895), D.Foulis (1910)
Homewood - HJ.Tweedie/J.Pearson (1901), W.Watson (1910)
Ravisloe - J.Foulis (1901), R.White (1903), W.Watson/A.Bauer (1910)
Belmont Springs - D.Ross (1908)
The Country Club - W.Campbell (1894), A.Campbell/H.Windeler (1899), H.Windeler (1910)
Essex County - W.Campbell (1894), D.Ross (1910)
Myopia Hunt - W.Campbell (1894), H.Leeds (1899-1907)
Minikahda - W.Watson/D.Foulis (1899), J.Jaffray/R.Taylor (1906)
Atlantic City - J.Reid (1897), H.Barker (1909)
Baltusrol - L.Keller (1895), T.Gourlay (1896), G.Low (1908-10)
Englewood - J.Hobens (1905)
Apawamis - T.Bendelow (1899), H.Strong (1906-10)
Fox Hills - P.King/D.Brown (1901)
Garden City - D.Emmet/G.Hubbell/A.Findlay (1899), W.Travis (1906-1910)
National - CB.Macdonald/D.Emmet/HJ.Whigham (1909)
Nassau - H.Murdock (1899)
Salisbury - D.Emmet (1908)
Pinehurst #2 - D.Ross/W.Travis (1907)
Mayfield - H.Barker (1909)
Waverly - H.Barker (1910)
Oakmont - H.Fownes (1903)
Ekwanok - JD.Dunn (1899), W.Travis (1905)
Columbia - H.Barker (1910)
For instance, would you argue that Garden City in 1905 was the same as Garden City in 1908? Merion in 1912 the same as Merion in 1915?? And so on...
Later today I'll post some articles that will show that many of the course you mentioned were in transition from cross-bunkered, "Cop" bunkered affairs that were very rote and mindless to some degree of "scientific bunkering", which was at various stages of implementation by 1910.
The bottom line is still that in early 1910, the very best US courses were all designed by amateurs for their own clubs, and the second tier of Ekwanok, Pinehurst, and others all had heavy amateur influence and architecture in the form of Walter Travis.
Most of the rest were far below this, or so new as to be outside anything anyone would have considered as they made their architectural choices in 1910.