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).
Gregory
Gregory is now well below its former popularity. All-time it's been given to 719,860 U.S. babies, the 973rd most common name by sound today, peaking at 22,193 in 1962, with 493 in 2025.
By sound, Gregory also includes the spellings Greggory.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).