Three unidentified men loading pack horses on the 1920 Canada trip. Location unknown, but likely somewhere along the U.S.-Canadian border at British Columbia.

Seven unidentified men loading pack horses on the 1920 Canada trip. Location unknown, but likely somewhere along the U.S.-Canadian border at British Columbia.

An unidentified ranger on horseback on the 1920 Canada trip. Location unknown, but likely somewhere along the U.S.-Canadian border at British Columbia.

Several loaded pack horses grazing in a meadow in the Hozameen Mountains on the 1920 Canada trip.

Photograph showing a party of men standing in a field of tall grass with horses. A forest is visible behind the group. Written on the negative is “Party at Three Links, 5-4-20.”

Story about an ornery horse at Poole's Ranch.

Photograph showing horse teams grading a dirt road cut. On the right side of the image is a forested hillside, and one the left is a loose dirt hillside. Written on the side of the negative is “E301.09-O-231.” (Image note: discoloration visible on the right side of the negative).

Photograph of a horse and unidentified rider jumping over a fence, possibly on a course. The number 9 is written on the negative and is visible in the lower right corner of the photograph. Image note: Speckling in image is due to deterioration of the negative.

Photograph of a horse and unidentified rider jumping over a fence, probably on a course.

Photograph of a horse and unidentified rider jumping over a fence. The number 44 is written on the negative and is visible in the lower right corner of the image.

Photograph of a horse and unidentified rider jumping over a fence. The number 5 is written on the negative and is visible in the lower right corner of the image.

Photograph of a horse and unidentified rider jumping over a fence, possibly on a course. Image note: Photograph shows discoloration due to deterioration of the negative.

Photograph of an unidentified boy standing with a horse and shaking the hand of an unidentified man. The boy is holding a trophy and the horse’s reins. The number 9 is written on the negative and is visible in the lower right corner of the image. Also see image No. 371N4934.

Photograph of a horse and sulky outside a building. An unidentified man holding a whip is riding in the sulky.

Photograph of an unidentified man driving a horse-drawn sulky on a gravel road.

Photograph of a woman in costume, sitting on a horse. The number 3 is written on the negative and is visible in the upper right corner of the image. The woman, a performer with the Al G. Barnes Circus, is unidentified.

Photograph of a woman lying upside down on the back of a rearing horse. The woman, possibly a performer with the Al G. Barnes Circus, is unidentified. The number 6 is written on the negative and is visible in the lower right corner of the image.

Photograph of a costumed man standing next to a horse and a costumed woman standing on the horse’s back. A trailer with the words “Al. G. Barnes Circus” painted on the side is visible in the background. The circus performers are unidentified. The number 27 is written on the negative and is visible in the upper right corner of the image.

Photograph of an unidentified woman on horseback, possibly at a horse show. A large covered area and more horses and riders are visible in the background. The number 2 is written on the negative and is visible in the lower right corner of the image.

Photograph of a woman standing next to a saddled horse and holding the horse’s reins. The woman is wearing a hat, collared shirt, jacket and tie. The text “Miss Ballou” is written on the negative and is visible on the right side of the image.

Portrait of an unidentified woman next to a horse and holding the horse’s bridle. A building is partially visible in the background.

Photograph of a horse and unidentified rider jumping over a log fence. Image note: Mark on negative.

Photograph of a horse and an unidentified young rider jumping over a large pile of grass in a field.

Photograph of a horse and unidentified rider jumping over a large pile of grass in a field.

Photograph of an unidentified man driving a horse-drawn sulky on a gravel road. Image note: Light leak on negative.

Photograph of a photograph. The original picture shows four unidentified Native American people with a horse hitched to a drag sled. A child appears to be riding on the drag sled. Image note: Photograph shows discoloration due to deterioration of the negative.

Photograph of a costumed woman sitting on a horse. The woman, possibly a performer with the Al G. Barnes Circus, is unidentified. Also see image No. 371N4389.

Photograph of a costumed woman posing with a horse. The woman, possibly a performer with the Al G. Barnes Circus, is unidentified. Also see image No. 371N4388. Image note: Light leak on negative.