The peak uses the recorded-sex category with the higher all-time published count. Ties keep the later year, then female before male. The recent comparison uses 2016, the start of the catalogue history window. A missing 2016 count is skipped. Download this list (CSV)

Spellings that peaked before 1950 and have at least doubled since the recent window opened.
Name	Category	Peak year	Peak count	2025 count	2016 count	Ratio
Lottie	female	1916	1,389	570	101	5.64×
Billie	female	1930	3,241	409	97	4.22×
Goldie	female	1915	1,051	469	118	3.97×
Teddy	male	1949	613	301	84	3.58×
Cleo	female	1920	1,049	516	145	3.56×
Lenora	female	1924	678	562	174	3.23×
Florence	female	1918	11,318	796	247	3.22×
Arthur	male	1921	10,527	3,847	1,345	2.86×
Opal	female	1918	2,847	740	261	2.84×
Nellie	female	1918	4,048	567	202	2.81×
Rosie	female	1927	1,560	1,088	396	2.75×
Ruthie	female	1927	428	349	137	2.55×
Bonnie	female	1947	10,214	785	312	2.52×
Mabel	female	1915	3,683	1,522	605	2.52×
Flora	female	1920	1,566	483	195	2.48×
Benny	male	1948	1,065	293	122	2.40×
Elsie	female	1918	5,194	2,236	981	2.28×
Della	female	1917	1,192	533	248	2.15×
Hollis	male	1921	294	266	124	2.15×
Elaine	female	1947	7,059	1,007	498	2.02×
Loretta	female	1938	3,913	485	240	2.02×

More calculated lists: Declining baby names since 2020 · Uncommon girl names that are rising · Uncommon boy names that are rising · Baby names 2026 · Girl names starting with Y · Boy names starting with Y.