Definition of "Bowery"

We were seen quarrelling this afternoon in a saloon over on the Bowery.

1919, Frank L. Packard, chapter 3, in The Further Adventures of Jimmie Dale

[…] sewer people, derelicts, bag ladies, undergrounders, and Bowery bums. Whatever the cause of their illness, as in Scanners, homeless people are victims but, more importantly, a threat to be eliminated.

2017, Stephen Pimpare, Ghettos, Tramps, and Welfare Queens, page 227