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).
Weston has been climbing in recent years. All-time it's been given to 86,795 U.S. babies, the 114th most common name by sound today, peaking at 6,272 in 2025, with 6,272 in 2025.
By sound, Weston also includes the spellings Westin, Westyn.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).