W.A. Granger
(on right, with little brother who died)

A.W. Beach, Photographer, Nashua, IA
http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=leonardgranger1&id=I21
Using information at the above link, the little brother pictured on the left is Abiel-Ebie Granger.
Born 1858 in Bremer Co., Iowa
Death November 13, 1861 in Horton, Iowa
Burial September 14, 1861, Horton Cemetery, Bremer Co., Iowa
Abiel-Ebie appears to be about two years old in photo, and using above dates he died around age of three.