Mcarthur vs Mcauthor
American parents have registered 2,275 Mcarthurs since 1880, against 13 Mcauthors. Neither name reached five babies in 2025.
Babies given each name, 1880–2025
Mcarthur Mcauthor
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Mcarthur has been the commoner name in every year either was published, 1912 to 2023. The lead has never changed hands.
The closest they came was 1943, when Mcarthur had 173 and Mcauthor had 5.
Side by side
| Mcarthur | Mcauthor | |
|---|---|---|
| Total US births | 2,275 | 13 |
| Most in one year | 290 | 8 |
| Babies in 2025 | under 5 | under 5 |
| Estimated living today | 1,500 | 5 |
| Median age today | 62 | 83 |
| Peak year | 1942 | 1942 |
| Best rank | 357th boys | 2,712th boys |
| Rank in 2025 | unranked | unranked |
| First recorded | 1912 | 1942 |
| Girls / boys | 0 / 2,275 | 0 / 13 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Which name is older
Half of the Mcauthors alive today are over 83; half the Mcarthurs are over 62. That is 21 years between them: two names in use at the same time, worn by two different generations.
Compare something else
Social Security Administration birth records, 1880–2025, public domain. Full histories: Mcarthur and Mcauthor.