7. John Tyler
Sandwiched between James K. Polk and William Henry Harrison, the tenth president of the United States was John Tyler. What he lacks in historian significance, Tyler makes up for in producing offspring. An unbelievable 15 children called Tyler “Dad.” That was only the legitimate ones. He also fathered children with his slaves. In case you’re just catching up, this sort of behavior is common when we treat other humans like livestock. In this case, the estate sold off those children, scattering the records and connections to Tyler.