Reference

Richard Morris Hunt played a significant role in the expansion of the Louvre. He was appointed as the inspector of works on the buildings connecting the Tuileries with the Louvre under the direction of the French architect Hector Lefuel. One of his notable contributions was designing the Pavillon de la Bibliothèque of the Louvre. Hunt's involvement in the Louvre's expansion is an example of his work outside the United States, showcasing his influence and architectural prowess in an international context.

For more information, you can visit this source.

Here is an image of Richard Morris Hunt: