Source: Aurora (1924) Ad:

O.G. BRUBAKER, M.D.
SPECIALIST
Eye-Ear-Nose-Throat
9-12 A.M.    1:30-4:30 P.M.
Office over Post Office.

Source: Oak Leaves, February 27, 1947

O.G. Brubaker, M.D.
Phone 582    225 East Main
Diseases and Surgery of
EYES, EARS, NOSE and THROAT
Your Eyes Are An Invaluable Asset-PROTECT THEM!