Watch the Ham's Rag online guitar lesson by David Hamburger from New School Fingerstyle
Merle Travis and Chet Atkins are the Abraham and Isaac of country fingerstyle guitar. Travis came first and was a commercial country star and a songwriter as well as the guitarist for whom Travis Picking was named. Atkins learned from Travis' style and, with his somewhat lighter touch, developed it into an even more sophisticated approach. You can hear Travis completely solo and acoustic on In Boston, 1959 and a good representation of Atkins less-produced early work on Guitar Legend -The RCA Years.
Reference Source: Chet Atkins (http://www.funkyjunk.com/chet-atkins.htm)