Complex sentence: The Du Pont family moved the sculpture to Wilmington, Delaware in 1920, and commissioned the current double-tiered, white marble fountain from sculptor Daniel Chester French and architect Henry Bacon, the co-creators of the Lincoln Memorial.
Split into simpler sentences: The Du Pont family moved the sculpture to Wilmington, Delaware in 1920. To replace it, the family commissioned the current double-tiered, white marble fountain from sculptor Daniel Chester French and architect Henry Bacon, the co-creators of the Lincoln Memorial.