This young man is Mose McCullough. This cabinet card was found in the same album as yesterday's picture of "Leo" and is probably from around the late 1890's. Mose is sporting a handsome patterned tie and some kind of button or pin. The photograph was taken by J. Penna of The Modern Studio, 112 Main Street, Brazil, Indiana.
If you know who this may be, let us know in the comments!