Less than a week later, drummer Dewey Martin, who had played with country artists such as Patsy Cline and The Dillards, was added to the roster after contacting the group at the suggestion of the Byrds' manager, Jim Dickson.Taking their name from the side of a steamroller -- made by the Buffalo-Springfield Roller Company -- that was parked on the street outside Friedman???s house (where Stills and