How big an act was the Kingston Trio? Big enough that the their first 19 albums not only reached Billboard"s Top 100, but 14 of them entered the top 10, with five albums alone hitting the no. 1 spot! At the height of their popularity, the Kingston Trio was arguably the most popular vocal group in the world, having single-handedly ushered in the folk music boom of the late a?50s and early a?60s. Their meteoric rise quite literally paved the way for Bob Dylan; Joan Baez; Peter, Paul & Mary; and the many acts that followed in their wake. With the release of their version of “Tom Dooley” in fall 1958, the Kingston Trio changed American popular music forever, inspiring legions of young listeners to pick up guitars and banjoes and join together in hootenannies and sing-alongs. In Greenback Dollar: The Incredible Rise of The Kingston Trio, the first in-depth biography of America’s first recording super-group, William J. Bush retraces the band members’ personal and professional lives, from...