Which monument is dedicated to the first Confederate soldier from Louisiana killed in the Civil War?

The monument dedicated to the first Confederate soldier from Louisiana killed in the Civil War is the Confederate Heroes monument. This monument specifically honors the memory of those who fought for the Confederacy, emphasizing their role and sacrifices during the Civil War. In the context of New Orleans, this monument serves as a historical marker, representing not just the individual sacrifice but also the broader narratives surrounding the Confederate experience in Louisiana.

The other options, while significant in their own right, do not specifically relate to the dedication to the first Confederate soldier. The Battle of New Orleans Monument commemorates the pivotal battle in the War of 1812, while the Celtic Cross reflects a different cultural heritage, and the Bust of George Washington pays tribute to the first president of the United States, indicating a focus on American history rather than the Civil War and specifically Confederate soldiers. Thus, the Confederate Heroes monument is aptly aligned with the historical context of the question.