How to read the band →
Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Hudson
Hudson is one of the fastest-rising names in America right now. All-time it's been given to 116,169 U.S. babies, the 45th most common name by sound today, peaking at 8,666 in 2025, with 8,666 in 2025.
Hudson has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).