Anyone know what Popeye's last name was?

Hello all, I was doing a crossword and this question came up. Backing into it the answer was OYL, but that was Olive's name and to my knowledge they were never married. I began looking and this answer comes up in crossword sites but not that I can find in Popeye sites. I don't recall Popeye ever having a last name....anyone know?

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