La Prairie has no famous person on record yet
In all of Illinois, the famous people on record come from 765 towns. The longest list in Illinois is Alton’s, with 65 names. After Alton, the next longest list in Illinois is Champaign City Township’s, with 64.
Who’s listed here
Famous people come from Wikidata (people whose birthplace is La Prairie), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in La Prairie has passed that check yet, and nobody born within 35 miles is listed.
From Wikidata and Wikipedia: people whose birthplace is La Prairie 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.