Some recent info about Alpha Farm, including a Youtube video :) ...
Alpha Garden -
It looks like Mary Lou Goertzen (born 1929) lives near Alpha and still hosts Quaker Meeting on 5th Sundays in the Deadwood Valley - http://members.pioneer.net/~alpha/index.htm - and Caroline Estes (http://alphainstitute.org/presenters.html), is one of Alpha's visionaries who still does workshops on consensus (Quaker-informed, and nontheistically Friendly, in a sense, too), I think.
Alpha Farm, Deadwood
Deadwood, Oregon -
Did you ever visit Olompali Park in the early '70s after the Grateful Dead, as well as "The Chose, Family" were there? ...
http://scott-macleod.blogspot.com/2014/02/smoketree-flowers-hippie-communes.html ... the 60s and early 70s are a fascinating time ... :)
1960s, wiki, subject page at world university and school, with links -