James Spurlock on Facebook has reported the passing of Dan Adkins sometime last week. I haven't yet found a corresponding notice anywhere online, but here's a link to his post on The Wallace Wood Estate Facebook page.
https://facebook.com/TheWallaceWoodEstate?ref=stream&hc_location=stream
Comments
newsfromme.com/2013/05/08/dan-adkins-r-i-p/
twomorrows.com/alterego/articles/08adkins.html