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).
Wrenley has been climbing in recent years. All-time it's been given to 11,076 U.S. babies, the 327th most common name by sound today, peaking at 2,882 in 2024, with 2,720 in 2025.
By sound, Wrenley also includes the spellings Wrenlee.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).