Is Stevie related to Arwin?
 

Listening to NPR over the weekend I caught the tail end of some program I don't usually listen to as they were reading off the names of the folks involved in the show's production. The mentioned Arwin Nicks, and for some reason that name sounded familiar to me.

Does anyone recognize the name and know whether this person is related to Stevie, or am I just having an early "senior moment"?

yes. cousin once removed (i believe).

Arwen is Stevie's "favorite cousin", John Nicks' daughter. John is the son of her uncle Bill.