No famous person yet from Blackburn
In Missouri, 392 towns have someone on the list. St. Joseph’s 57 names make the longest list in Missouri. After St. Joseph, the next longest list in Missouri is Columbia’s, with 51.
Who’s listed here
Famous people come from Wikidata (people whose birthplace is Blackburn), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in Blackburn has passed that check yet, and nobody born within 35 miles is listed.
From Wikidata and Wikipedia: people whose birthplace is Blackburn 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.