The founder of what American indie folk band also led DeYarmond Edison featuring Field Report's Christopher Porterfield? 
Christopher Porterfield:  He currently leads the folk band Field Report. Christopher Porterfield:  Porterfield previously played with DeYarmond Edison, a band led by Bon Iver frontman Justin Vernon. Bon Iver: Bon Iver ( Bone-ee-VARE) is an American indie folk band founded in 2006 by singer-songwriter Justin Vernon.
Bon Iver