Feminine dossier · first seen 1909

Thomasine

Extinct Near statistical disappearance

Peak era

1950

Peak births

Current vitality

Dormant

Peak generation

Boomer

1909Peak 19502025

Quick answers about Thomasine

How many people are named Thomasine?

Based on SSA birth records through 1994, an estimated 1,214 Americans born with the name Thomasine may still be living. No new bearers have been recorded since 1994.

How rare is Thomasine?

Thomasine has not appeared in SSA records since 1994. It is effectively extinct as a new baby name — no girls received it in the latest available data.

How old is the typical Thomasine?

The median age of a living American named Thomasine is approximately 70 years, with most bearers falling between 60 and 78 years old.

Is Thomasine still popular?

No. Thomasine is extinct in new births; the SSA last recorded it in 1994.

Peak year

1950

Decline from peak

100%

2025

All-time

2,234

Thomasine disappeared from SSA records in 1994 and has not been seen in 31 years. Its absence is now longer than many names' entire recorded lifespan.

Thomasine peaked in 1950, when 67 girls were given the name.

No girls were recorded with this name in 2025 — at least not five of them (the SSA's reporting floor).

Down 100% from its peak.

In all, the Social Security Administration has recorded about 2,234 Americans named Thomasine since 1909.

Rarity scoreStatistical floor

Peak generationBoomer

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

1,214

Estimated living Americans with this name.

Median age70

Core range60–78

Playground Density Index 0.0%

Wave type

Plateau

A name with moderate spread and no sharp recent move.