I have Kuhns in my background here in Cincinnati.

George Kuhn came to NY and thence to Cincinnati ca 1838 with his parents (not sure of father's first name. About 1860's the family name was Keene, though Kuhn (with an umlaut) was used in their German circles. I know nothing about George's siblings, if any, or other earlier relatives. The family was originally from Winnweiler, Germany.

If you think there is a connection, let me know. I unerstand Kuhn is a common German name.