Short answer: yes.
Why
Griffith’s Valuation (c.1848–64) shows Hughes households scattered across multiple civil parishes in both County Kilkenny and County Wexford, indicating an established presence in the mid-19th century (your target period).
Surname authorities note that Hughes (largely from Ó hAodha) was “very numerous… especially in South Leinster and Munster”—which includes Kilkenny and Wexford. Wexford also had an Anglo-Norman Hughes line.
By 1901 the name ranked 40th in Ireland overall (11,720 bearers), which aligns with it being common in the late 19th century.
Tips if you’re researching the name there
Check parish-level entries from Griffith’s for the specific parishes/townlands of interest in each county.
Watch for related/overlapping forms and confusions in records (e.g., Hayes / O’Hea in the south vs. Hughes/ McHugh elsewhere).
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