Counterfactual

The Parallel Lives of Heidi and Peggy

In 894 girls, Heidi found its level. 50 years earlier, Peggy occupied that same statistical address.

1929–2025

Heidi

peak 1972 2025 18801900192019401960198020002020
Peak year 1972
Peak births 4,723
Latest count 894
Status Stable
Peak generation Gen X
1880–2025

Peggy

peak 1958 2025 18801900192019401960198020002020
Peak year 1958
Peak births 10,071
Latest count 12
Status Endangered
Peak generation Boomer
Heidi and Peggy peaked in the same cultural weather — the Gen X naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.