This charming late nineteenth-century cabinet card was photographed by W.J. Richardson of Oneida, New York, and depicts a beautifully dressed young girl standing beside a seated toddler boy in a carefully arranged studio interior. The girl wears her hair in long braids and is adorned with decorative buttons or breast ornaments that add visual interest to her otherwise modest Victorian dress. She stands confidently, her posture poised and composed. She is adorable. Beside her, the younger boy sits with a softer, slightly tentative expression, creating a lovely contrast between sibling composure and childhood vulnerability. The “big sister” seems to be assuming a protective posture in relationship to her sibling. Both children share pleasant smiles. The careful posing, the understated backdrop, and the children’s clothing all reflect the aesthetic sensibilities of the 1880s–1890s, when cabinet cards were at the height of their popularity. The mount style and photographic tone strongly suggest a date in the late 1880s to early 1890s. The image retains strong contrast with tonal depth. There is light, even age toning consistent with photographs of this period. The mount shows gently rounded corners, and the cabinet card remains solid and structurally sound. The cabinet card has gold beveled edges which are in good condition. Overall, the card presents in very good antique condition and displays beautifully (see scans).
This cabinet card is available for purchase at my store, The History Peddler, for $35.00 at auction.
Interested collectors may view the listing here:
https://www.ebay.com/itm/336449098030
THE CABINET CARD GALLERY 
It’s W. T. Richardson. He ran an ad for his studio in a local newspaper in 1883 where the T. appears in a newspaper font. I don’t know why he didn’t like to use his perfectly normal given name (William Thomas).