No famous person yet from Cortland Township
Of the bordering towns, DeKalb Township has a list, with Joseph B. Ebbesen. 790 of the towns in Illinois list at least one person. Alton’s 65 names make the longest list in Illinois. 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 Cortland Township), checked against each person’s English Wikipedia article and ranked by how many Wikipedia languages cover them. Nobody born in Cortland Township has passed that check yet, and nobody born within 35 miles is listed.
Famous people born near Cortland Township
Close by, DeKalb Township counts one famous person.
From Wikidata and Wikipedia: people whose birthplace is Cortland Township 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.