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).
Parker
Parker has been climbing in recent years. All-time it's been given to 163,836 U.S. babies, the 97th most common name by sound today, peaking at 7,126 in 2014, with 6,013 in 2025.
Parker has no common alternate spellings by sound.
Rising