"Right." Rob said, moving some of the papers on his desk and sitting down on the wood. He flicked his wand and a picture of the four founders. "This is where I think you've gotten a bit mixed up, James. Helena was the name of Rowena Ravenclaw's daughter where as Hufflepuff's first name was Helga. It's all easy to get mixed up with it but here is the interesting part. Helga Hufflepuff had one descendent and one possible descendant. We know for sure that Hepzibah Smith was Hufflepuff's descendant and then there was Zacharias Smith who attended Hogwarts in the '90's. However there is speculation about that because he lacked the qualities for Hufflepuff as well as every other house so the Sorting Hat had to put him somewhere.
But yes, Hufflepuff had a descendent. Coincidently Hepzibah Smith inherited the famous cup which she was later killed and the cup used to be made into a Horcrux by none other than Slytherin's descendent Tom Riddle or more commonly known as Lord Voldemort."
Rob paused to make sure the students were listening and he flicked his wand, making the other founders disappear, leaving Gryffindor the only one left.
"Now, Godric Gryffindor had no direct descendents which means Benjamin is right. Do not let people make you think that Harry Potter was a descendent because he wasn't end of story. We all have some kind of founder blood in us because they were Pureblooded. Pureblood marry other purebloods, inbreed and create squibs, squibs marry Muggles and eighty years later you have a Muggle-born, shockingly enough. Godric Gryffindor died without children. However, there are those who claim to have connections. It's probably only through his parents, anyway, unless the man had a child who's birth wasn't recorded. This is unlikely."