#1Bion J. Arnold
1861–1942American engineer and mass transportation expert
Each edition grades its towns against each other only.
Bion J. Arnold leads the list, covered in 3 languages. The list has one more: the American geologist and professor Arthur Edmund Seaman. From Arthur Edmund Seaman to Bion J. Arnold, the births on the list run from 1858 to 1861. No town in Michigan lists more than Dearborn, with 63.

#1American engineer and mass transportation expert
American geologist and professor
Pick one and say why. Your answer becomes a post in Town Square.
Be the first to say who Casnovia’s most famous person is.
From Wikidata and Wikipedia: people whose birthplace is Casnovia 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.