Emerson and the Surname Crossover Wave

Nov 6, 2026 Abigail Adams, Editorial writer

The old crossover story had a direction. A boys' name would tip toward girls, the boys would abandon it, and within a generation it belonged to one sex entirely. Leslie did it. Avery did it.

The surname names of the 2020s are doing something different: they are growing for both sexes at the same time.

Emerson: bigger on both sides

In 2010, Emerson was given to 994 girls and 609 boys. In 2025: 2,226 girls and 1,362 boys — ranked #122 for girls and #253 for boys.

Both sides more than doubled in fifteen years, and the split barely moved: girls were 62% of Emersons in 2010 and are 62% today. This is not a name being taken over. It is a name expanding in both directions at once, with girls simply expanding from a head start.

Parker: the near-even surname

Parker shows the same shape from the other side. Boys still lead — 3,469 boys to 2,525 girls in 2025 — but the girls have quadrupled since 2010 (616 babies), while the boys have come down from their 2015 peak of 5,418.

The result is a name ranked almost identically for both sexes: #102 for boys, #106 for girls. A Parker born in 2025 is 42% likely to be a girl — up from 12% in 2010 (616 of 5,340).

Finley: the wave can recede

Finley is the cautionary case. The girls' Finley surged first — 763 babies in 2010 to a peak of 1,591 in 2015 — then halved: 720 girls in 2025, below where she started. The boys' Finley, meanwhile, grew steadily and held: 386 in 2010, 992 in 2025.

So in 2025 Finley sits at 42% girls, the same split as Parker — but it arrived there by the girls retreating, not advancing. A surname's girls' wave, it turns out, can crest and fall back while the boys' side keeps the name afloat.

Rowan: the counterexample

Not every surname name crosses. Rowan grew on both sides too — 576 girls and 928 boys in 2010 became 1,222 girls and 5,212 boys in 2025 — but the boys grew five-fold and now take 81% of the name (ranked #58 for boys, #248 for girls).

Rowan and Emerson started 2010 in nearly the same place. Fifteen years later one is a girls-led name growing for everyone, and the other is a boys' name with a girls' minority. The surname itself doesn't decide the direction; the culture around each name does.

Why surnames behave differently

The old flips were driven by sound: a boys' name that started to sound soft or pretty tipped, and there was no way back. Surnames arrive with a different kind of baggage — they read as family names, place names, occupation names. They carry no strongly gendered sound to tip, so both sexes can adopt them in parallel, and the split can sit at 60/40 or 40/60 for years without collapsing.

Our advice: A surname name's split is a snapshot, not a destination. Emerson's 62/38 has been stable for fifteen years, which is genuinely reassuring if you want a name that stays shared. But check both trend lines on the name's pages before you commit: Finley's girls looked unstoppable in 2015, and Rowan's girls are a shrinking minority of a booming boys' name. The two curves, not the current split, tell you where a crossover name is actually going.

Watch the wave on both charts: Emerson (girl), Emerson (boy) and Parker (boy).