Oscar Benjamin Curtis (1858-1921) was the son of Benjamin Kingman Curtis and Sarah Lavantia Card. Oscar went by the name Joe most of his life.
The photographer's imprint information:
A.A. Barr & Co. Photographers
72 Canal St.
Cor. Bronson, Grand Rapids, Michigan.
The only Gallery on Second floor in the City.
On the back of the photo it said, "My Father" Belle Curtis Helgesen Demey.