Photo identified as Minne McDonald, Uncle John McDonalds Twins 

Possibly Wilhelmina McDonald born April 1854 to Nancy Corbett McDonald and John McDonald originally of Hardwood Hill, Pictou County, Nova Scotia.

Minnie had two sisters, a twin Jessie and a younger sister Lizzie. The sisters can be found in the 1870 and 1880 census for San Francisco, California with their mother Nancy.