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).
Gideon
Gideon has stayed fairly steady in American naming for generations. All-time it's been given to 22,302 U.S. babies, the 655th most common name by sound today, peaking at 1,161 in 2017, with 993 in 2025.
Gideon has no common alternate spellings by sound.
Rising