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).
Benson
Benson has been climbing in recent years. All-time it's been given to 14,344 U.S. babies, the 841st most common name by sound today, peaking at 1,227 in 2025, with 1,227 in 2025.
Benson has no common alternate spellings by sound.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).