Mike,
I would think the Ekwanok story would be the likely answer, considering the qualties of their membership. They were important enough to earn/bring the US Am up to Manchester, VT, as well as no doubt belonging to many other well-known Northeast clubs.
I will check my Travis bio for the aforementioned passage about Mac/Raynor.
As for the others mentioned....
Crown Point was built in the late 40s/early 50s by a combination of members and William Mitchell. Played it once, about a month ago.
Barre has an old 9 and new 9, the first by Stiles & Van Kleek in 1924, the second by Michael Hurdzan. Never played here.
Brattleboro is a combination of a Wayne Stiles 9 and a William Mitchell 9 built much later. I imagine the course has been further modified since then after looking at the pics on their website.
Woodstock has been touched by many designers since its incorporation in the 1890's. Responsible for the routing are William Tucker in 1906 (Travis remodel in 1912) and Wayne Stiles in 1924. Ross lended another remodel in 1938. and , who are responsible for The current course features (and newly refurbished and slightly jagged-edged bunker style) are attributable combination of RTJ Sr. (1963) and Rulewich (recent). Played it twice this fall.
Dorset founders built 9 in 1886, and their new nine was built by Vermont's own Steve Durkee, opening 1999-2001. It's high on my wish list.
I know less about Lake St. Catherine and Mt. Anthony, but I've driven by them several times. LSCC at least is an old 9/new 9 (early 90s) combination. Mt. Anthony has been in existence in its location since 1905.
-Brad