In my research of the AT in the early seventies. I got the 2,000 miler applications for the two years from the Appalachian Trail Archives, housed in the Special Collections at George Mason University:
I missed this talk, but have been getting papers and such from the collection.
So on this date in 1975
George Conger
Ralph Ferrusi
Gordon King
Chris Lea
Completed the 2,000 Mile AT!
Congrats.