How to change your mind
So I went back to the drawing board and came up with something the Welsh bwbach might know easily from Scotland and found these:
Biasd Bheulach, a one-legged creature that is okay with women but beats men to death.
Coluinn Cheann A headless monster that would fling his severed head much like a Dullahan. I like that he wasn't killed but rather banished. It might make sense he is in America
Or we can use something Germanic (Columbus, Pittsburgh etc have a big German populace that could have brought their bogies).
There's the Aufhocker or Wiederganger. It's a shape shifter, big dog, werewolf what have you.
And yes, I know I said I didn't really want a nursery bogie but the Kinder-Fresser is kinda cool. I mean child-guzzler, that's hard to resist. (We're lucky I'm not going with the red-legged scissorman from Struwwelpeter. I couldn't get enough of that book as a kid...which should have been my parents first clue some therapy was in order...that at Gorey's Gashlycrumb Tinies)
and then there's the Papstesel which is just kinda messed up.
So many choices, it's hard to choose.