In the years following the Civil War, a veritable army of homeless men swept across America's "wageworkers' frontier" and forged a beguiling and bedeviling counterculture known as "hobohemia." Celebrating unfettered masculinity and jealously guarding the American road as the preserve of white manhood, hoboes took command of downtown districts and swaggered onto center stage of the new urban culture. Less obviously, perhaps, they also staked their...