Unknown Ancestors

I found this photo whilst going through old photos that belonged to my grandparents. I have no idea who the people in the photo are, or the date. I only have the image and the studio where the photo was taken. Unfortunately this studio no longer exists. Judging by the style of dress and image type, I'd presume the image was taken in either the mid to late 1800s or early 1900s. My goal is to identify who they are and how I am related to them.