It seems they have been in existence since meeting in Oregon around 2014 and have made at least a couple of CDs. They travel throughout America in an old school bus, and live in it too.
I made a video of them performing 'Blue Moon of Kentucky'. You can watch it by clicking here. On another day I filmed them playing 'Careless Love'. You may see that video HERE.
And I recorded them performing Jabbo Smith's 'Lina Blues': CLICK HERE. You may care also to listen to Jabbo Smith's original version from the 1920s HERE.
You can even watch Jabbo - still wonderful in old age - singing the song HERE.
By the way, I note that there are plenty more videos of St. Cinder to be found on YouTube.
You can learn more about St. Cinder by clicking here.