Roy O. Disney, who oversaw the construction and financing of Walt Disney World after Walt's death, died in late 1971, and for the next decade the company was run by a team of card walker, Donn Tatum and Ron Miller - all originally trained by the Disney brothers.Donn Tatum (1971 - 1976) The next CEO after the death of Roy O. Disney would be Donn Tatum.Net Worth:$ 1 BillionNationality: