"Class of 1944—Register of Graduates". Register of Graduates and Former Cadets 1802–1971 of the United States Military Academy. The West Point Alumni Foundation Inc. 1971. p. 535. Retrieved July 9, 2022.
"Former President John Tyler's (1790–1862) grandchildren still alive". January 25, 2012. Retrieved January 25, 2012. If Elizabeth Ann Harding Blaesing was actually Warren Harding's daughter, she would have been the oldest surviving presidential child from 1995 to her death in 2005, at which point John Eisenhower would have become the oldest.