How did white farmers become a part of the sharecropping system

Explanation:

Initially, sharecroppers in the American South were almost all black former slaves, but eventually cash-strapped indigent white farmers were integrated into the system. During Reconstruction, the federal Freedmen's Bureau ordered the arrangements for freedmen and wrote and enforced their contracts.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers