This is a a Cabinet Card. The older children surround their little sister in the chair.
P.H. Tallman was a photographer from Blooming Prairie, Minnesota. He was in that area from 1898 to 1900 and then again in 1906.
On a side note, Blooming Prairie was named by a railroad executives wife after she saw all the wooden shacks that made up the settlement. Blooming Prairie is located in South Eastern Minnesota.
Thanks for stopping by, do come again:)