1880s baby names

The old order, still tightly gathered

The 1880s profile covers 1880–1889 and contains 2,408,091 recorded births: 1,312,690 girls and 1,095,401 boys, across 3,951 distinct names. Mary is the girls’ popularity champion with 91,668 births in the decade; John leads the boys with 89,949. These are counts in the SSA file, not an estimate of every birth in the country.

The decade is relatively concentrated: the ten largest name-and-sex combinations account for 22.25% of recorded births, and the top hundred account for 63.23%. Its diversity score is 70.8837, its effective number of names is 354.39, and its concentration score is 0.8325. Together those measures describe a large long tail beneath a comparatively narrow popular core; they do not say that families were making the same cultural choices for the same reasons.

Popularity and ownership separate cleanly here. Maud is the leading girls’ ownership name, with 4,201 decade births out of 13,159 lifetime births, a 0.319249 decade share, and an ownership score of 88.2932; it ranks 74th in popularity. Will leads boys’ ownership with 6,196 decade births out of 45,952 lifetime births, a 0.134836 decade share, and an ownership score of 90.0176; it ranks 26th in popularity. The point is descriptive: a name can be relatively distinctive to an era without being its largest name.

The representative classroom is drawn from 1884, the independent anchor year for this decade. It has 30 seats—16 girls and 14 boys—and all 30 names are unique: repeatedNames is 0, uniqueNames is 30, and the most repeated name has one seat. The displayed top-share value is 0.0333, the rounded form of one of thirty seats; this is a deterministic reconstruction, not a prediction about an actual classroom.

No spelling family is approved for the 1880s. That is the honest editorial result rather than an invitation to merge historically distinct names just to create a large number. The records contain rare and ambiguous forms, but none has a manually reviewed family with at least two spellings above 1,000 births and at least 20,000 births combined.

These are descriptive results from the SSA national files, with counts below five suppressed and sex recorded as the source’s binary reporting field rather than gender identity. The lifetime comparisons run through the 2025 data vintage, so ownership is a versioned descriptive score, not a claim that the 1880s caused a name’s later trajectory. The data cannot tell us why parents chose a name, and no paragraph here should be read as a causal account of nineteenth-century naming.