Sometimes it becomses confusing and there are conflicting stories. For example, in these articles one states that Grover Cleveland (known as the President with two non-consecutive terms) proclaimed himself to have the largest penis. Cleveland Claims to Have Largest Presidential Penis - Associated Content (the article is questionable considering it's done with Anderson Cooper long after Cleveland was diagnosed as being dead)
Another article bestows the honor to William Howard Taft, a.k.a. The Cincinnati Shaft. Presidents in bed (scroll down a ways)
It should be noted that both of the men listed above had mustaches and died in the 1900s, one was from Ohio and one had a last name that happens to be the same as a city in Ohio. Let me go and check now on rumors about the size of James Garfield and Rutherford B. Hayes-also from Ohio.
Another article bestows the honor to William Howard Taft, a.k.a. The Cincinnati Shaft. Presidents in bed (scroll down a ways)
It should be noted that both of the men listed above had mustaches and died in the 1900s, one was from Ohio and one had a last name that happens to be the same as a city in Ohio. Let me go and check now on rumors about the size of James Garfield and Rutherford B. Hayes-also from Ohio.