I don't know how Maureen McGovern got associated with One Tin Soldier, but the artist who covered the song in the 1971 film is Coven.

I looked on the Billy Jack Soundtrack liner notes that I found online.

Even Coven's version is a cover. The song was originally recorded in 1969 by The Caste. The song is written by two Candians. (Pacifist Canadians, what?? smile )

I'm probably the one who associated Maureen McGovern with the song when I put One Tin Soldier into YouTube and her track came and I just made an assumption. My bad. blush

Proper credit goes to Coven for covering the song on the Billy Jack Soundtrack. Bow

Contrarian, extraordinaire