Those two examples have an “o” after the “h”. Are there any other words starting “he” that Americans treat the “h” as silent?

I lived in Philly for years and never noticed the way people say “erbs” but since returning to Australia I hear it constantly.

Edit: I hear Americans say it constantly. No one in Australia says “erb”.

Hno. I do say 'historical' rather than 'istorical', but that's the only one I can think of in the global English-speaking world that has any number of adherants off the top of my head.