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).
Doris
Doris was a common American name in the 1920s but is rarely given today. It's been given to 474,824 U.S. babies all time and once ranked 114th by sound, peaking at 16,951 in 1928 (down to 58 in 2025).
By sound, Doris also includes the spellings Dorris.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).