This is a Cabinet Card, which was a popular photo format in the 1880s. They were first used in the 1860s for landscape views, eventually adapted to portraits, and had greatly declined by the 1890s.
I'm unsure of the previous owner, but their relatives included Phil Chase, Everett Shearer, Fred Shearer, Bruce Elrod, Lillie Hollingbaugh, Fred Hollingbaugh, Margaret Sharp, J. Hollingbaugh, Bessie Hollingbaugh, Cliff Hollingbaugh, Nellie Hollingbaugh, Ferd Protzman, Eva (Hollingbaugh) Shearer, and Nill McCort. Standard-size Cabinet Card, measuring about 4.25 x 6.5 inches. Identified and named as Nill McCort.
All items are protected in archival sleeves and packaged in rigid cardstock. This item is in the category "Collectibles\Photographic Images\Photographs". The seller is "calamityphoto" and is located in this country: US. This item can be shipped worldwide.