Here is a copy of the picture, both front and back. As I said, there is a note on the front of the picture that is kind of hard to read, but I think it is
To my sweet milady with loving wishes
That might not be exactly what it says and his last name may be wrong too.
Behind the picture it says Madame Ellen Beach Yaw
Sept 14, 1869=Sept 9, 1947
With a stamp that says Rm 504 Gaiety Bldg,
something way &46th St, N.Y.