Photograph of an unidentified toddler sitting on the back of a horse standing on a dirt road near buildings. The number 24 is written on the negative and is faintly visible in the upper right corner of the image. The photograph may have been taken at the Multnomah County Fair in Gresham, Oregon.

A young woman rides on a white horse in the Pendleton Round-Up parade in Pendleton, Oregon. She holds a flag on which the only legible word is "Joseph." She wears cowboy clothing and a cowboy hat. Behind her, the sidewalk is filled with spectators watching the parade (negative 8 of 8).

Photograph of an unidentified woman mounted on a horse. The photograph was likely taken at the annual Pacific International Livestock Exposition in Portland. Image note: Photograph shows discoloration due to deterioration of the negative.

Photograph of an unidentified woman mounted on a horse. Parked cars are visible in the background. The photograph may have been taken at the annual Pacific International Livestock Exposition in Portland. Also see image No. 374N1190.

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).

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.

Photograph, taken from the side, showing an unidentified man riding a horse. The man is wearing a uniform, probably a United States Army uniform.

Full-length portrait, taken from the front, showing a teenage boy and girl on horseback, facing slightly left. The photograph was probably taken at the annual Pacific International Livestock Exposition in Portland.

Portrait of a young girl sitting on a pony and an older girl standing at the pony’s head, holding the reins. The girls are unidentified.

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).

Photograph of an unidentified boy sitting on a pony. Standing next to the pony are three unidentified men, all wearing suits and ties. Another boy is visible in the background, also standing next to the pony. The men at left and right are also pictured in image No. 4937.

Photograph of soldiers from Lord Strathcona’s Horse, a Canadian cavalry regiment (now an armored unit). The soldiers are in a row on horseback and are carrying pennants. The photograph was probably taken at the 1938 Pacific International Livestock Exposition in Portland, where soldiers from the regiment performed drills.

Photograph of soldiers from Lord Strathcona’s Horse, a Canadian cavalry regiment (now an armored unit). The soldiers are on horseback and are carrying pennants. The photograph was probably taken at the 1938 Pacific International Livestock Exposition in Portland, where soldiers from the regiment performed drills.

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.

Two rodeo hands ride their horses among a herd of steers at the Pendleton Round-Up in Pendleton, Oregon. They prepare for bull-dogging events by separating the steers. In the background, the tipis of the Indian Village are visible. Writing on the right side of the negative reads, "9/11/58." This photograph was published in the Oregon Journal on September 11, 1958 (negative 6 of 10).

Photograph showing pairs of male and female riders at the 1950 Western Horse Show in an open field area. Large electric lights can be seen over the field, in addition to automobiles, trailers, and empty bleachers.

Photograph showing people on horseback in a field area during the 1950 Western Horse Show. Automobiles and trailers can be seen in the background behind and next to the riders, as well as utility poles and electric lines.

Photograph showing women wearing western boots and shirts on horseback in a field area during the 1950 Western Horse Show. In the background are automobiles and trailers on the left side of the image. Also visible are large lights and electric lines.

Photograph showing riders on galloping horses at the 1950 Western Horse Show. The man at the front is carrying a United States flap on a pole, while the man behind carries another flag. In the background are other riders, automobiles, and horse trailers.

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).

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).

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 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).

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).

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).