No famous person yet from Clay
Modesto’s 65 names make the longest list in California. After Modesto, the next longest list in California is Alameda’s, with 64. In all of California, the famous people on record come from 543 towns.
Who’s listed here
Famous people come from Wikidata (people whose birthplace is Clay), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in Clay has passed that check yet, and nobody born within 35 miles is listed.
From Wikidata and Wikipedia: people whose birthplace is Clay and whose English Wikipedia article agrees, ranked by how many Wikipedia languages cover each person. People known mainly for crimes, and adult performers, aren’t listed. “The usual town” = everyone born in the towns gathered so far.