Robertsville has yet to put a famous person on the list
775 towns in Ohio have at least one famous person on record. The longest list in Ohio is Warren’s, with 54 names. After Warren, the next longest list in Ohio is Hamilton’s, with 51.
Who’s listed here
Famous people come from Wikidata (people whose birthplace is Robertsville), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in Robertsville has passed that check yet, and nobody born within 35 miles is listed.
From Wikidata and Wikipedia: people whose birthplace is Robertsville 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.