Most of these are in the past year or so, last one one is a classic from 2017

Off The Beaten Jack episode #1 - For the Story
Off The Beaten Jack episode #2 

Song of the Soul - For the Spirit

The Folk Pod - For the Folk Music

For the Early Blackjack Years:
Risk of Ruin episode 1 - David vs Goliath I
Risk of Ruin episode 2 - David vs Goliath II
Risk of Ruin episode 3 - The Audacity of Hope

Art Of The Song - Darryl chats with Viv Nesbit in about 2016