Here's Derroll's album, Along the Way (1976):

https://www.youtube.com/watch?v=jcv9Q5ioYjk

Here's Movin' On (1974):

https://www.youtube.com/watch?v=26n2oBFMNbk

Folkland Songs (with Jack Elliot):

https://www.youtube.com/watch?v=ulOfpCRI4IE