Christine McCoy (1851-1912) and Millie McCoy (1851-1912) were African American conjoined twins, entertainers, and singers.
Ollivier Photo was a photography studio operated by Horace Ollivier in Brooklyn, New York.
W. L. (Washington Lafayette) Germon was a photographer active in Philadelphia, Pennsylvania, 1846-1877.
Hughes & Co. was a photography studio active in Saint Louis, Missouri, circa 1860s.