Note (return) — Chapter X · Chicago and Its Environs
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The most important city in this section to be affected by the migration was Pittsburgh, the gateway to the West. The Pittsburgh district is the center of the steel industry. For this reason, the war caused the demand for labor to be extremely heavy there. Pittsburgh was one of the centers to which the greatest number of negroes went. Before the migration, a considerable number of negroes were employed there. In 1900, the negro population of Allegheny county, in which Pittsburgh is situated, was 27,753. In 1910 it was 34,217. When the migration began, the county had about 38,000 negroes. Investigations and estimates indicate that, at the end of 1917, the negro population of the county had increased to almost 66,000. Epstein in his survey of The Negro Migrant in Pittsburgh said:127