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).
Taylor has fallen well below its former popularity. All-time it's been given to 462,413 U.S. babies, the 488th most common name by sound today, peaking at 30,249 in 1993, with 1,228 in 2025.
By sound, Taylor also includes the spellings Tayler, Taylar, Taelor.