Well of course. Family members of AH living in the US certainly would not want to do anything to attract attention. They were very low key and did everything they could to distance themselves and blend in discreetly.
I can imagine, though I find it amusing that "Patrick Hitler", while serving in the US Military, was asked if he was going to change his name, to which he replied, "No. I'm going to make the other guy change his. "
I admire the spirit, but that was never going to work.