I am convinced,that the only way to get people to hear traditional singers,is to use the internet to expose them to the music.,the more the ordinary [non folkie hears],the more their ear gets attuned to the style.
unfortunately we now live in an age where people expect everything to be easily available.
I had never heard Roscoe Holcomb sing until I found him on Pete Seegers show on youtube.
IMO The music has to be publicised in an over the top way,only a small amount of people will come seeking it,We now have the opportunity through you tube /sound lantern and other sites to reach thousands of people,and to push traditional singers into the mainstream.Dick Miles