In the third photo (gentleman with the beard) is George Arlow Barnhart (1834-1914). He was the father of Marguerite Majora (Greta) Barnhart (1890-1963), who married Otis Porter, and Lillian Idalia Barnhart (1882-1972), wife of Elicher Wiley Lacey. I'm not sure who the woman is that is standing behind him. George was born 1 Jan 1834, in Liberty, NY, and was married three times. Marguerite's mother was Margaret Matilda Lewis (1854-1945). He was a Civil War veteran and is buried in Parksville Cemetery, Parksville, NY.
I hope that helps some.