Few of my ancestors' genealogies are as contentious as my 10x great-grandfather, Colonel Thomas Pettus, born abt 1598 in England (either London or the County of Norfolk). His lineage has sparked fierce debates among American genealogists for two centuries. One of the problems is the sheer volumes of Thomases in the Pettus family. It is incredibly easy to get them confused.
Then there is the debate about whether he married Ko Oke "Jane" Powhatan, a daughter of Matoake (better known as Pocahontas) and her first husband, Kocoum. While there is a European-descended researcher group who have challenged the marriage between Ko Oke and Thomas Pettus, 3 different Virginian Native American tribes have not only claimed this lineage down the ages, it verges on the sacred among them. I'm going to admit bias towards the Native Americans' claim. For who would have better knowledge of Native American history than Native Americans? This too has been supported by researchers William Strachey, historian at Jamestown, and Bill Deyo, the tribal historian of the Patawomeck tribe. These are two men who know the early colonial history of Virginia.