Elijah Cox
Portraits of African American ex-slaves
from the U.S. Works Progress Administration,
Federal Writers' Project slave narratives collections
Library of Congress

Betty Powers, ex-slave, Ft. Worth Texas September 14, 1937
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Patsy Moses, ex-slave, Waco Texas November 15, 1937
also here
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Ellen Polk, ex-slave
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Virginia Newman, ex-slave, Beaumont Texas June 11, 1937

previous citation here, here