Where Houdini Lives
Nice video, thanks for posting it! HH's father died of oral cancer, not a stroke, and he was 38, not 30 in 1912. Interesting comment by the video hosts that Doyle attributed the absense of phenomenon from mediums to Harry's own psychic powers canceling theirs out.
Good catches. But overall this is really a cut above as far as research goes. They don't fall into the typical traps, like saying he went to seances after his mother died. Maybe they used this blog. :)