1. William Henry Harrison, 31 Days

In Office: March 4, 1841 —April 4, 1841

在位：1841年3月4日——1841年4月4日

Died within a month of his first term. Harrison only had time for one official act: calling Congress into a special session, which he set to begin on May 31, 1841. He and Whig leader Henry Clay had disagreed over the necessity of the special session (which Harrison opposed, but Clay desired in order to immediately get his economic agenda underway), but Clay's powerful position in both the legislature and the Whig Party quickly forced Harrison to give in. Harrison was the first president to die in office.

就職的第一個月內離世。Harrison僅僅參與過一次官方活動：1841年5月31日開始召集國會開展特別會議。他和輝格黨領導人Henry Clay對于特別會議的必要性產生分歧（Harrison反對，但是Clay為了使他的經濟議程順利進行希望會議盡快進行），但是Clay在立法機構和輝格黨的有利地位迫使Harrison讓步。Harrison是首個在職時去世的總統。