Which individual was known for their significant contributions to African American history in Louisiana during the Reconstruction period?

The correct choice is noteworthy because Oscar Dunn holds a pivotal role in Louisiana's African American history during the Reconstruction era. Serving as the first African American Lieutenant Governor of Louisiana from 1868 until his death in 1871, Dunn made significant advancements toward racial equality and colored representation in government. His leadership came at a crucial time when the state was undergoing radical changes post-Civil War, and his contributions helped to pave the way for future African American politicians.

Dunn was also active in promoting education and civil rights for African Americans during a time when such efforts were often met with significant resistance. His political influence and dedication to the improvement of the African American community in Louisiana underscore his importance during this period of transformation.

In contrast, Norbert Rillieux, known for his innovations in sugar production, while important for industrial advancements, did not have a direct role in the political and civil rights movements of the Reconstruction era. John McDonogh was significant for his philanthropic efforts in education, but he did not primarily operate within the context of African American rights during Reconstruction. David Farragut was a naval officer whose contributions were more aligned with military achievements during the Civil War rather than specifically impacting African Americans in Louisiana during the Reconstruction period.