More help needed from those who DO remember the Blue Dog Cellar. The name sounded right when I saw the thread, but I was never in Baltimore until January of 1966, and left in May- training at Bainbridge, MD whilst employed by the US branch of the Grey Funnel Line.
I remember a lean dark haired guy named George, reedy slow blues voice and pretty good guitar player, and it may have been Stevens but could have been Blatherskate:). I don't remember anything else about Baltinore except the excellent Farmers Market.