On page 59 of 740 Park, there is a reference to the Bank of the United States, which failed in 1930. It had no connection with the institution of the same name founded in Philadelphia in 1791. On page 86, Abby “Babs” Rockefeller is referred to as John D. Rockefeller, Jr.’s sister, and her husband, David Milton, as his brother-in-law. In fact, Babs was Rockefeller’s only daughter, making Milton his son-in-law. And on page 494, Marie Douglas is alternately identified as the second and then the third wife of United Technologies chairman George David. He has had only two wives and she is the second. I regret the errors.