Walter Scott, Jr. is a billionaire who was CEO of Peter Kiewit Sons' Incorporated, a Fortune 500 construction and mining company that is among the largest contractors in the world. He sits on the Board of Berkshire Hathaway, and is a childhood friend of Warren Buffett, who has been the wealthiest person on earth. In 2013, he as the 670th wealthiest person in the world, with a net worth of $2.2 billion.
Scott serves on the board of directors of Berkshire Hathaway, Burlington Resources, Commonwealth Telephone Enterprises, Level 3 Communications Inc., MidAmerican Energy Holdings, RCN Corporation, Valmont Industries, and Peter Kiewit Sons' Inc. Scott is currently chairman of Level 3 Communications, Inc. The corporation is one of the firms created by the 1998 separation of the two operating divisions of Peter Kiewit Sons' Inc. Since the split-off, Scott now serves as Chairman Emeritus of Peter Kiewit Sons', Inc.
The original sales document of the Louisiana Purchase was acquired in 1996 by Walter Scott Jr. and now is currently in his private collection.