Bob "Rob" Burke on a bucking horse identified as Lightfoot at the Pendleton Roundup.

Black and white image of Indians participating in the Pendleton Roundup parade in Pendleton, Oregon. Spectators are standing beside the street watching.

Black and white image of six Indians in full dress on horseback at the Pendleton Roundup. Spectators with U.S. flags are visible behind them.

A man is grappling with a bull. His arms are wrapped around its head. The man is wearing Euro-American style clothing. Three individuals on horseback look on in the background. The image shows some staining...

An unidentified Native American child and a Native American women, identified as Wenix, the sister of Donald McKay, of the Cayuse tribe, are outside in front of a tipi. The child is seated on two Pendleton...

Black and white image of people on horseback in a parade.

Black and white image of four Indian Chiefs in full dress at the 1912 Pendelton round-up. The four men are in the center of the rodeo arena with spectators around the edges.

Black and white image of judges at a rodeo.

Black and white image of four Indian Chiefs at the 1912 Pendleton Roundup. The Chiefs are on horseback at the center of the arena, spectators are visible in the background.

Black and white image of the Grand Review at the Pendleton Roundup. Three Indians in full costume are visible on their horses, riding in a line inside the arena. Spectators and other participants are visible...