I recognize my grandmother from knowing her and having seen other pictures. Charlie and Fannie I recognize from having seen other pictures. The fact that I can see my own father in Charlie's face isn't proof, but it was an interesting thing for me to note.
"Looks like a relative" is not adequate for identification.
It pays to proofread: As soon as I posted this image, I realized I left off the state in which the picture was taken. To me the state was obvious, but obviously that will not be obvious to others.