These two photo appear to have been taken about the same time. I suppose they could be related, but we have no idea who they are.
The imprint on thee cabinet cards reads: A.R. Fowler, Meadville PA.
The photographer is probably Albert Fowler, found in both the 1900 and 1910 censuses as a photographer living in Meadville, Pennsylvania. Albert was born about 1858 and his wife was named Flora.
Update 01/28/12 – These photos are likely Edward Collins and one of his daughters, Julia, Alice, or Margaret, and have both been reunited with family. See the “Comments” for more information.