Columbia subject headings:
Harvard subject headings:
African American civil rights workers--Mississippi--Biloxi--Biography.
African American physicians--Mississippi--Biloxi--Biography.
African Americans--Civil rights--Mississippi--Biloxi--History--20th century.
Biloxi (Miss.)--Biography.
Biloxi (Miss.)--Race relations.
Civil rights movements--Mississippi--Biloxi--History--20th century.
Mason family.
Mason, Gilbert R.
Princeton subject headings:
African American civil rights workers--Mississippi--Biloxi--Biography.
African American physicians--Mississippi--Biloxi--Biography.
African Americans--Civil rights--Mississippi--Biloxi--History--20th century.
Biloxi (Miss.)--Biography.
Biloxi (Miss.)--Race relations.
Civil rights movements--Mississippi--Biloxi--History--20th century.
Mason, Gilbert R.