Here's a wonderful video of Earl. It gives you and idea of just how warm and humble Earl was and what an incredible legacy he left us. Just scroll to the bottom of the page. You'll see a young Sonny Osborne, J. D. Crowe, Mike Munford, Alan Munde, Bill Emerson and many more of the greats who look really happy to be with Earl and pick a tune with him.
At about 3:31 in the video, Randy Scruggs picks with his Dad. 
I believe this video is from the late 60s...Jack Baker
http://www.banjonews.com/2012-03-29-earl-scruggs-in-memory.html