It's more common to see this written (and pronounced by locals) as "Bawlmer". edit to clarify: the pronunciation varies across demographic/racial/ethnic lines,

It's more common to see this written (and pronounced by locals) as "Bawlmer". edit to clarify: the pronunciation varies across demographic/racial/ethnic lines, with "Bawlmer" being common among blue-collar white natives, but that's a minority of the population of the city proper.