Zachary Taylor

On July 4, 1850, President Zachary Taylor fell ill and was diagnosed by his physicians with cholera morbus, a term that included diarrhea and dysentery but not true cholera. Cholera, typhoid fever, and food poisoning have all been indicated as the source of the president's ultimately fatal gastroenteritis. More specifically, a hasty snack of iced milk, cold cherries and pickled cucumbers (pickles) consumed at an Independence Day celebration might have been the culprit. Taylor died five days later at 10:35 p.m. in the White House on July 9.

In the late 1980s, author Clara Rising theorized that Taylor was murdered by poison and was able to convince Taylor's closest living relative, as well as the Jefferson County, Kentucky Coroner, Dr. Richard Greathouse, to order an exhumation. On June 17, 1991 Taylor's remains were exhumed from the vault at the Zachary Taylor National Cemetery, in Louisville, Kentucky. The remains were then transported to the Office of the Kentucky Chief Medical Examiner, Dr. George Nichols. Nichols, joined by Dr. William Maples, a forensic anthropologist at the University of Florida inGainesville, Florida, removed the top of the lead coffin liner to reveal remarkably well preserved remains which were immediately recognizable as those of President Taylor. Radiological studies were conducted of the remains before small samples of hair, fingernail and other tissues were removed. Thomas Secoy of the Department of Veterans Affairs (and a direct descendant of Taylor's Democratic presidential opponent Lewis Cass), ensured that only those samples required for testing were removed and that the coffin was resealed. The remains were then returned to the cemetery and received appropriate honors at reinterment. The samples were sent to Oak Ridge National Laboratory, where neutron activation analysis revealed traces of arsenic at levels less than one percent of the level expected in a death by poisoning.

Warren G. Harding

In June 1923, President Warren G. Harding set out on a cross-country "Voyage of Understanding," planning to meet ordinary people and explain his policies. During this trip, he became the first president to visit Alaska. Rumors of corruption in his administration were beginning to circulate in Washington by this time, and Harding was profoundly shocked by a long message he received while in Alaska, apparently detailing illegal activities by his own cabinet which was apparently unknown to him. At the end of July, while traveling south from Alaska through British Columbia, he developed what was thought to be a severe case of food poisoning. He gave the final speech of his life to a large crowd at the University of Washington Stadium (now Husky Stadium) at theUniversity of Washington campus in Seattle, Washington. A scheduled speech in Portland, Oregon was canceled. The President's train proceeded south to San Francisco. Upon arriving at the Palace Hotel, he developed pneumonia. Harding died in his hotel room of either a heart attack or a stroke at 7:35 p.m. on August 2, 1923. The formal announcement, printed in the New York Times of that day, stated that "A stroke of apoplexy was the cause of death." He had been ill exactly one week.

Naval physicians surmised that he had suffered a heart attack. The Hardings' personal medical advisor, homeopath and Surgeon General Charles E. Sawyer, disagreed with the diagnosis. Mrs. Harding refused permission for an autopsy which soon led to speculation that the President had been the victim of a plot, possibly carried out by his wife, as Harding apparently had been unfaithful to the First Lady. Gaston B. Means, an amateur historian and gadfly, noted in his book The Strange Death of President Harding (1930) that the circumstances surrounding his death lent themselves to some suspecting he had been poisoned. Several individuals attached to him, personally and politically, would have welcomed Harding's death, as they would have been disgraced in association by Means' assertion of Harding's "imminent impeachment." Means was later discredited for publicly accusing Mrs. Harding of the purported murder.