William Sidney Arnett (May 10, 1939 – August 12, 2020)[1] was an Atlanta-based writer, editor, curator and art collector who built internationally important collections of African, Asian, and African American art. Arnett was the founder and chairman of the Souls Grown Deep Foundation,[2] an organization dedicated to the preservation and documentation of African American art from the Deep South that works in coordination with leading museums and scholars to produce groundbreaking exhibitions and publications using its extensive holdings. His efforts produced 13 books with nearly 100 essays by 73 authors. Thirty-eight museums have hosted major exhibitions, and comprehensive archives are maintained at UNC Chapel Hill. The White House has shown the collection. Arnett exhibited works from these collections and delivered lectures at over 100 museums and educational institutions in the United States and abroad. He is perhaps best known for writing about and collecting the work of African American artists from the Deep South. Arnett was named one of the "100 Most Influential Georgians" by Georgia Trend Magazine in January 2015.[3] He died on August 12, 2020.