Emily Post disagrees: http://emilypost.com/advice/addressing-a-former-president-of-the-united-states/ http://emilypost.com/advice/addressing-a-former-president-

Emily Post disagrees: http://emilypost.com/advice/addressing-a-former-president-of-the-united-states/ http://emilypost.com/advice/addressing-a-former-president-of... Robert Hickey also: http://www.formsofaddress.info/FOA_president_US_former.html http://www.formsofaddress.info/FOA_president_US_former.html Miss Manners too: https://www.highbeam.com/doc/1P2-1030916.html https://www.highbeam.com/doc/1P2-1030916.html