Columbia subject headings:
Hiring halls.
Stevedores--New York (State)--New York.
Stevedores--Washington (State)--Seattle.
Harvard subject headings:
Hiring halls.
Stevedores--New York (State)--New York.
Stevedores--Washington (State)--Seattle.
Princeton subject headings:
Hiring halls.
Stevedores--New York (State)--New York.
Stevedores--Washington (State)--Seattle.