These are PDFs of newspaper reviews, and other documents from 1969 to 1970
These were photos from the 1967 to 1970 time frame, from Dave McKenas.   I played piano and accompanied the choir a lot.   Also, a Telegram when my…
European Tour - 1973 Itinerary and short summary document. 
No exact date or location listed.
The Choir List was dated 10/8/1996.
These are sample programs. No dates or locations listed.