Mmmh...I just saw that my thesis director has an entry here. Should I input my name too ? I do confess that, being French, this genealogy tree is to me a lttlie bit awkards, as it looks like a little bit to this tree ...You can find more suspects here.
https://genealogy.math.ndsu.nodak.edu/
It's very easy to forget the names of mathematicians especially if you didn't know them in the first place, especially ML where some (not all) think Marvin Minsky is the inventor of mathematics.