Counterfactual
The Parallel Lives of Jolyn and Kaitlyn
In 7 girls, Jolyn found its level. 50 years earlier, Kaitlyn occupied that same statistical address.
1936–2025
Jolyn
Peak year
1969
Peak births
51
Latest count
7
Status
Declining
Peak generation
Gen X
1971–2025
Kaitlyn
Peak year
2000
Peak births
8,759
Latest count
340
Status
Endangered
Peak generation
Gen Z
In 7 girls, Jolyn found its level. 50 years earlier, Kaitlyn occupied that same address. One peaked in the Gen Z era; the other in the Gen X world. They never met. But the data remembers them both.