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Jeffery
231,818 recorded births · active 1894–2025
Living-age distribution
The median living Jeffery is 57. If you meet a Jeffery, there's about a 70% chance they're between 38 and 68 years old.
Popularity arc
● One-Generation WonderA sharp, defining spike for one generation, then a steep fade.
Peak Jeffery: 1962. Down 98% from peak.
Geographic fingerprint
Jefferys are 1.4x more common in the Midwest than the national average.