Seamus, Yes, even Hank, Jr. to some degree.

The whole rock and roll thing came from to a large degree (not entirely) from Hank. Argueably, his "Move it on Over" was the first white guy rock song, pre-dating bill Haley's Rock Around the Clock by about 4 years. Elvis was highly influenced by Hank, Sr.

Jimmie Rogers was the father of just about everything. Vernon Dalhart might have had the first big million selling hit with The Prisoner's Song which, along with Rogers, influenced, Tubb, Snow, Williams, and just about everyone else from that generation.