All of the following were common sources of low-cost industrial labor in the Southern textile mills of the new South except children.
African Americans.
recent immigrants.
American Indians.

When immigrant labor was cutoff in the 1920s, the native ... especially poor whites and blacks from the South, began ... The costs of rearing and educating persons who ...

what are local authorities doing to fix the problem

explanation:

what are local authorities doing to fix the problem

the crusaders are identified in the painting;

c. by the red crosses on their backs