Ferney has yet to put a famous person on the list
In South Dakota, 127 towns have someone on the list. The longest list of any town in South Dakota belongs to Sioux Falls, with 54. Rapid City has the second-longest list in South Dakota, after Sioux Falls, with 46.
Who’s listed here
Famous people come from Wikidata (people whose birthplace is Ferney), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in Ferney has passed that check yet, and nobody born within 35 miles is listed.
From Wikidata and Wikipedia: people whose birthplace is Ferney 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.