The phenomenon that I noted some weeks back, namely that in many datasets (having roughly equal numbers of boy's names and girl's names) sorted alphabetically it's possible to draw a line such that the majority of the women's names are on one side and the majority of men's on the other, has evidence in contemporary naming practices too. Joel just pointed me towards this article, and while they do say some moderately silly things (such as "Girls' names are more diverse than ever" -- not really. The feminine name pool has always been more diverse than the masculine. It could very well be that girls' names are more diverse than they have been in the 20th C, but that's not the same as "ever"), but, on the basis of last year's social security baby name data, they comment:
Which is in line with the phenomenon that I've noticed.
Similarly, the most popular first letter for boys; names is J, as it was for much of the 20th century. The most popular first letter for girls is the once-obscure A, thanks partly to rising names like Avery, Arianna and Ava.
Which is in line with the phenomenon that I've noticed.