William McKinley
In 1896, a gold prospector gave McKinley's name to Denali, the tallest mountain in North America at . The Alaska Board of Geographic Names changed the name of the mountain back to Denali in 1975, which is what it was called by locals. The Department of the Interior followed suit in August 2015 as a part of a visit to Alaska by President Barack Obama. Similarly, Denali National Park was known as Mount McKinley National Park until December 2, 1980, when it was changed by legislation signed by President Jimmy Carter.
Mount Harvard
In 1962, three Harvard men attempted to erect a fourteen-foot metal pole on the top of Harvard, with a sign that read "Mt. Harvard, 14,434. This sign erected at an altitude of 14,434 making it the second highest point in the contiguous United States." Before they could reach the top of the mountain darkness set in, and the group was forced to abandon the pole a few hundred yards short of the summit. The next year, two Harvard men (Tim Wirth, who later represented Colorado's Second Congressional District and then served a term in the U.S. Senate, and his brother John), along with a Cornell graduate carried the pole the extra distance, and completed the task. The pole sat on the mountain for roughly twenty years, until it disappeared at some time in the 1980s, most likely as part of an effort to clean up Colorado's fourteeners.