Who are they?
On the back: "Clara - Alice - Owen - Florence."
The children may be descendants of John Rupp (1830-1883) and his wife, Genovefa Sutter (1830-1903), of Buffalo, New York.
Cabinet card by Landsheft Artistic Photographer, 193 E. Genesee St., Buffalo, N.Y. This business was active in the 1890s, and perhaps earlier and later.