My dad's family tree is a gigantic mess. A couple of cousins put it together and stuck it on Ancestry.com. They put down all manner of spelling of the family names, assuming that none of the people could read or write and that there were variations of spellings. There wasn't. All Dad's kin were educated and had been for generations, all spelled the family name the same way. The other spellings were other, totally unrelated people. Wrong tribes, wrong locations, wrong everything!
The same cousins did the same thing for Mom's family...