An unidentified woman on horseback. Image note: negative is double exposed and there is a photograph of a rock formation superimposed on the image. Caption from negative sleeve reads, "Lady on Horseback, S73, LW2-57."

Photographic postcard showing roughly 30 horses pulling a combine harvester down a hill in a grain field in Washtucna, Washington. Several farm workers pose on the farm machinery. Handwritten label on the front of the postcard reads, "Colliers Combine Harvester, Washtucna. Ash." Handwritten note on the back of the postcard is crossed out. It reads, "Combine at work, H. Collier Ranch, Washtucna."

Photograph showing a group of horses pulling a combine harvester through a grain field near Culver, Oregon. At least 15 horses pull the machine. Two farm workers work on the machine. Handwritten note on the back of the print reads, "Combined Harvester, Rodman Ranch, Near Culver." Stamps on the front and the back of the print indicate a 1911 copyright by Kiser Photo Co. for SP&S Railway.

Photograph showing a farm worker operating a machine to cut crops in a field in Central Oregon. Several horses are used to operate the machinery. Two horse-drawn wagons to the right of the machine are used to harvest the crop.

Photograph showing over 20 horses pulling a combine through an agricultural field. A group of men, women and children pose on the combine. Handwritten note on the bottom of the print reads, "Combine of ?. 3 miles west of Berge(?)."

Photograph showing approximately a dozen horses pulling a combine through an agricultural field in front of a farmhouse in Goldendale, Washington. Several farm workers stand on the combine. Handwritten note on the back of the print reads, "Combine working 4 miles out of Goldendale." Second handwritten note reads, "Klickitat Co, Wn." Third handwritten note reads, "A Washington-Oregon combine harvester." Stamp on the back indicates that a reproduction of this print was ordered from Hicks-Chatten Engraving Co. on November 16, 1911. Second stamp on the back reads, "The North Bank Road, Portland, Ore."

Negative of a photographic postcard showing several horses in a large, open field. There are clouds in the sky above. Handwriting on negative reads, "On the Range. Christian 11-560."

Negative of a photographic postcard showing 2 children on horseback under a sign announcing the Umatilla County Fair in Hermiston, Oregon. In the foreground, a banner over a road reads, "Welcome Umatilla County Fair." Handwriting on negative reads, "Fair Grounds - Hermiston, Ore. Christian 11-962."

Negative of a photographic postcard showing 3 people on horseback on Jefferson Park Trail in Oregon. Behind them is a view of the mountains. Handwriting on negative reads, "View from Jefferson Park Trail. Christian S-210."

A photograph of seven people seated in or standing beside a horse-drawn wagon on the Flowers family farm near Mt. Scott in Southeast Portland. A handwritten note on the back of the photograph reads, "On the farm. Leaving for picnic on the Clackamas River. Flowers Farm, Lents."

Black and white photograph of a woman sitting in a canoe in the middle of a flooded street. Men and boys stand in the street and on the sidewalks, many wearing thigh-high rubber boots. A man rides on a horse behind the woman in the canoe, and a pair of horses and a buggy are visible behind him. The water is about a foot deep. The photograph is mounted on a grey mat that was once bound into an album. Handwritten text below the photograph reads "Flood of 1890" and "Lady in Canoe". The photograph was taken in February, 1890, when excessive rain and unusually warm weather caused the Willamette and Columbia Rivers to flood.

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).

Ruth Elinor King, Rose Festival princess for Franklin High School. She wearing a rose corsage and standing next to a bridled horse (negative 2 of 6).

A man rides a bucking bronc at the Molalla Buckeroo, while other riders and people watch. A raised bleacher area can be seen next to the dirt arena (negative 3 of 7).

A man on a moving horse ropes a calf at the St. Paul Rodeo. At the far side of the dirt arena is a group of onlookers, riding on horses and sitting at the top of a fence (negative 1 of 5).

View of people watching harness races from the grandstands.

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 two men with a horse towing a metal cart on a railroad track. The horse is attached to the cart via a harness, with the reins being held by one of the individuals. In the background are trees and a hillside.

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.”

A photograph showing three people and a horse. Mrs. Albert Hill stands on the left knitting. Albert Hill stands on the right holding the reins. A third person stands holding farming equipment behind the horse.

A photograph of a person using a horse-drawn reaper in a field in a forested area.

A photograph of Marie Holst Pottsmith, Mr. and Mrs. Henry Hill, and Harvey Mowick on a horse-drawn cart leaving on the new road built that summer. Harvey Mowick was going to get his family after building a house for them on the homestead. They look back at the camera. A dog is visible on the left.

Photographic postcard showing several men and horses on a beach, likely on the Columbia River. The horses are outfitted to haul material out of the water. The men appear to be seine fishing.

Photograph of 3 men in a wheat field. One man sits on a vehicle drawn by 3 horses. There are bushels of wheat scattered around the field. Handwriting on back of print reads, "Clackamas County. 1 Mile West Clackamas Sta."

Members of a work crew grade a dirt road in the Silverton, Oregon area. Seven men stand near teams of horses pulling graders across the road.

Two men sit in a wagon full of baled hay pulled by a pair of horses in the Silverton, Oregon area. A herd of cows is visible behind the wagon.

A photograph of a man standing in grass next to a Rawleigh's quality products wagon. There are two horses pulling the wagon.

A portrait of Henry Yelkus, a member of the Molalla Tribe, standing with a horse.