Columbia subject headings:
African Americans--Legal status, laws, etc.
Ferguson, John H.
Ferguson, John H. (Judge)
Plessy, Homer Adolph.
Segregation in transportation--Law and legislation.
Harvard subject headings:
Ferguson, John H.
Ferguson, John H. (Judge)
Plessy, Homer Adolph
Plessy, Homer Adolph--Trials, litigation, etc.
Segregation in transportation--Law and legislation
Segregation in transportation--Law and legislation--Louisiana--History.
Segregation--Law and legislation--United States--History.
Princeton subject headings:
Ferguson, John H.
Plessy, Homer Adolph.
Segregation in transportation--Law and legislation--Louisiana--History.
Segregation in transportation--Law and legislation--United States--History.