From the article, Here Are The Most Conservative And Liberal Names In America by Katherine Miller.
Crowdpac, a nonpartisan group, focuses on how money and policy work in politics. The group scores all donors who have made two or more campaign contributions since 1980. Using that algorithm — and a cut-off of names with at least 1,000 donations made to avoid unusual names and outliers — Crowdpac built a tool to show how conservative or liberal first names are.A somewhat murky methodology or algorithm generating a likely meaningless list that has no apparent use. But you, or at least I, can't help but run the names of your nearest and dearest through the site to see how "liberal" or "conservative" they are.
You’ll notice there is a very stark gender divide! The liberal names generally sound like a group of women in their late 20s; the conservative names sound like the members of a large bluegrass band from the 1930s. This makes sense: Women are more likely to be Democrats, for one thing, and the liberal names also generally represent younger Americans, while the conservative names generally skew older.