Photograph, taken from the front, showing members of the Royal Canadian Mounted Police on horseback. They are in a field in two rows, facing front, and each rider is carrying a pennant. The photograph was probably taken in October 1935 during the Pacific International Livestock Exposition in Portland, where the mounted police performed. See related image No. 375A0015.

Photograph, taken from the side, showing members of the Royal Canadian Mounted Police on horseback. They are in a field in two rows, facing right, and each rider is carrying a pennant. The photograph was probably taken in October 1935 during the Pacific International Livestock Exposition in Portland, where the mounted police performed. See related image No. 375A0014.

Full-length portrait, taken from the side, of an unidentified man on horseback. The man and horse are on a dirt track, facing to the right.

A woman rides a horse at the spring race meet for the Portland Hunt Club at Garden Home. She is holding what appears to be a metal bowl. In front of her, another woman stands at ground level holding folded papers. The rider uses one hand to hold the horse’s rein. Written on the negative is “Mrs. Omer Bonney - Sun Blanket” (negative 1 of 6).

Women ride horses on a track during the Portland Hunt Club’s spring race meet in Garden Home. Spectators watch from covered bleachers along one side of the track, and a man stands on a ramp along the opposite side. Written on the negative is “Ladies Dash - Mrs. Omer Bonney - Sun Blanket” (negative 2 of 6).

Omer Bonney stands next to his horse (Gold Dust) while holding a trophy, during the spring race meet for the Portland Hunt Club in Garden Home. He is standing on a dirt track in front of a fence, behind which is a field and more fences (negative 3 of 6).

William Bernard sits atop Irish Peer at the spring race meet for the Portland Hunt Club, in Garden home. He is holding a trophy and ribbon in one hand. Behind him is a building with people standing on a balcony, and a man walking (negative 4 of 6).

Omer Bonney (on Gold Dust) and John Osburn (on Royal Chinook) jump their horses over a fence at the Portland Hunt Club in Garden Home (negative 5 of 6).

Racers on a dirt track at the spring meet for the Portland Hunt Club, in Garden Home. The racers appear to be at the finish line, where a group of people cluster around and under a covered building. Fields and fences can be seen in the background (negative 6 of 6).

A group of riders lined up next to fence for the Portland Hunt club paper chase in Garden Home. The horses stand on a dirt road at a fence opening, and other people can be seen standing in the background (negative 1 of 6).

Riders on horseback travel down a dirt during the Portland Hunt Club paper chase. A parked car can be seen at the left side of the frame, and people can be seen in the far distance on the road (negative 4 of 6).

Photograph showing a group of young women riding roses at Camp Westwind, as part of the YWCA’s Girl Reserve program. The group is riding through an area of sand and grass, and forested hills can be seen in the background. One woman, seated on a horse, is riding in front of the group (negative 7 of 22).

Riders participating in a 100-yard dash at Kelly field, during a celebration for the Oregon City Centennial in 1948. This photograph was published in the Oregon Journal on Friday, August 13, 1948 (negative 17 of 19).

Riders on horseback at Kelly field, during a celebration for the Oregon City Centennial. Two people can be seen on the ground next to the horses, as an audience watches from covered bleachers. Photograph from this series were published in the Oregon Journal on Friday, August 13, 1948 (negative 19 of 19).

People racing on horseback during a Portland Hunt Club meet in Garden Home. They ride on a fence-lined dirt track, while people watch from the distance. Photographs from this series were published in the Oregon Journal on Sunday June 19, 1949 (negative 2 of 16).

A person jumping a horse during a Portland Hunt Club meet in Garden Home. The horse is in midair over a fence, with the rider holding its reins. Photographs from this series were published in the Oregon Journal on Sunday June 19, 1949 (negative 4 of 16).

A woman, wearing riding clothes, takes a trophy being held be a child at the Pacific International Livestock Exposition show in Portland. The woman holds the reins of a horse in another hand while looking downward at the child. An audience can be seen seated in stands at the edge of the dirt arena (negative 7 of 12).

An area of tipis at the Pendleton Round-Up. Two indigenous adolescents are on horseback on a dirt road, while other children watch (negative 5 of 11).

Indigenous American riders, wearing regalia, at the Pendleton Round-Up. The riders are passing in front of a seated audience in raised bleachers. Several United States flags are waving in the wind over the audience (negative 12 of 21).

Indigenous American riders at the Pendleton Round-Up. Two young women share a horse at the front of the group, with two other women on horseback hold children in front of themselves (negative 21 of 21).

Kathryn Lazinka, Pendleton Round-Up queen, riding on horseback. Behind her are three other riders in the dirt arena (negative 7 of 21).

Two racers, neck in neck, at the Pendleton Round-Up. A crowd watches from from wooden stands at the side of the track (negative 9 of 21).

Young rider Gloria Rizzo, age 3, at the Pendleton Round-Up. She wears a western hat and shirt, This photograph was published in the Oregon Journal on Sunday, August 27, 1950 (negative 22 of 24).

Jeanette Wesley, member of the Yakima Tribe and Indian Queen of the Pendleton Round-Up. She wears regalia while seated on a horse, and receives a blanket from Mrs. C.M. Bishop Jr. This photograph was published in the Oregon Journal on Monday, August 28, 1950 (negative 13 of 23).

A bronc rider falling off a horse during the Pendleton Round-Up. The man is in mid-fall, while the horse kicks its back legs into the air. An audience can be seen watching from the background (negative 2 of 23).

Five-year-old trick rider Carol Armtrout, standing in the saddle of a galloping horse. She has both arms raised and is looking towards the camera. Most likely taken at Multnomah Stadium, empty stands can be seen in the background (negative 2 of 4).

Five-year-old trick rider Carol Armtrout, sitting in a saddle on top of a horse. She is holding the mane of the horse while looking towards the camera. Most likely taken at Multnomah Stadium, empty stands can be seen in the background (negative 4 of 4).

A woman rides horseback with two young children during the Pendleton Round-Up. The child at the front holds the reins while looking at the camera. Photographs from this series were published in the Oregon Journal on Thursday, September 11, 1952 (negative 2 of 14).