I'm not sure if they're the same people, but the similarities are too much to ignore. I'm definitely going to do some more homework.
I had Margaretha's name listed as Margaretha Hoffe or Hoppe. "Kraft" is a new one to me, but when I looked up the name you gave me, I found "Anna Catharina Margaretha Kraft". Also, I don't have a middle name for Henry, but I did have his DOB listed as June 6, 1822 (but also may be inaccurate).
What I DO know is that Henry changed the spelling of the family name from Meier to Meyer, which matches the story you shared. His father spelled the name Meier. The best lead I've found so far suggests that Heinrich's father's name was Johann Heinrich Wilhelm Meier and his mother was Teetje Johan Doyen. But I've not been able to confirm the authenticity of that information.
I'll keep searching and let you know what I come up with.