Hillis comes from the Modern American tradition, meaning Unknown meaning..
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How popular is Hillis?
1919peak year
Hillis first appears in the U.S. registration record in 1912. Its popularity climbed over the following decades. In 1919, 16 babies received the name (ranked #2014). In the most recent decade it does not appear in national rankings. In total, around 421 babies have been registered with this name since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
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