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).
Molly
Molly is now well below its former popularity. All-time it's been given to 224,697 U.S. babies, the 442nd most common name by sound today, peaking at 5,198 in 1991, with 1,813 in 2025.
By sound, Molly also includes the spellings Mollie.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).