|I would say it looks Italian rather than Spanish but the spelling is incorrect. It was probably changed over the years and spelt as it sounded as there are no Janzeminis in Italy. Don't you have any other clue on your ancestors? At least where they lived in US....|
If you do a Google search it looks like it may be from the Middle East based on the first names [Mehrdad, Shekoufeh, Mahmood as examples] that come up with Janzemini as the search word.
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