perhaps the last two lines are a clue?
It appears to be the name of the town where Mr. Mueller lives
but I find no town with that name; thus, it is likely not spelled
correctly. Phonetically, it might be something like Allistarville??
Where did your ancestor live in the US? Perhaps it is an American
town? If not, I have only seen such town names in the Alsace-Lorraine
Without more info about your ancestor, where he lived, or who Mr. Mueller
might be.... it is all just a guess.