The link above says he died in 1964. However, Peter LaFarge's photo was on the cover of the January 1966 issue of Sing Out, and the inside article says he died October 27, 1965.

In the article, by Julius Lester, the author quoted one of LaFarge's poems:

Excerpt from "Epitaph" -

Cisco Houston passed this way
Sang a song and was gone next day
We loved and we mourned him
But he's gone away
And the morning rises
On the people who stay.

In the same issue is an article by Hedy West's dad, Don West, about Kentucky coal mining.