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).
Nellie
Nellie has been climbing in recent years. All-time it's been given to 161,155 U.S. babies, the 867th most common name by sound today, peaking at 4,077 in 1918, with 749 in 2025.
By sound, Nellie also includes the spellings Nelly.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).