Photograph showing a man (Alex Komolofske) wearing a dirtied work jumper standing next to a wheeled generator vehicle. A "PGE" logo is attached to the generator, with "Onan Electric Plant" painted on the side.

Photograph taken from a high angle, looking downward at a kneeling man working on a large electrical generator at an unidentified location. Another unit can be seen in the background. Written on the negative is "51-880."

Photograph of a man sitting in front of a switchboard unit. Two meters on the unit are visible, with "watts" and "volts." The is turning a numbered dial with his right arm while facing away from the camera. Written on the negative is "50-376."

Photographs showing two men in suits standing to either side of a large radio transmitter unit. They are both looking at the unit, and the man on the right is smiling. A sign on the unit reads "Wired Radio Transmitter, Line Material Co." Written on the negative is "50-658."

Photograph showing a man facing towards a large electrical generator at the Oak Grove Dam. On his right is a stairway leading to the upper level of the generator, which is in a large industrial powerhouse building. Written on the negative is "49-291."

Photograph showing workers building a transmission tower component. Several men holds parts of the structure, while one man on the left side of the frame looks on. In the distance, fences, an open field, and wooden houses can be seen. On the negative is written "49-74."

Photograph taken from a side angle, showing an electrical transformer, likely at an electrical substation. Several ceramic insulators can be seen at the top of the unit, as well as numerous attached electric lines. On the negative is written "49-73."

Photograph showing an electrical transformer, likely at an electrical substation. On the front of the unit is written "General Electric." On the top of the unit are several ceramic insulators and electric lines. On the negative is written "49-77."

Photograph, taken from the side, showing a man looking upward while holding a metal lever. In the background, more electrical equipment and ceramic insulators can be seen. On the negative is written "49-86."

Photograph showing people and cars in front of a fenced substation. Multiple men in suits and hats stand on the sidewalk in front of the metal fence, behind which several large pieces of electrical equipment can be seen. On the negative is written "49-102."

Photograph showing a man with a paneled electrical unit. He is wearing a pocketed work vest, and is looking at the panel while holding a wire towards the board. On the negative is written "49-95."

Photograph showing a transformer at the Fairmont substation in June of 1949. Above the transformer, numerous ceramic insulators can be seen, as well as a large "PGE" sign. On the negative is written "49-135," which is crossed out and replaced with "49-101."

Photograph showing two men in suits with unidentified machinery. One man looks on as the other uses a metal pole to move a lever. Several numbered signs can be seen on the machinery, which extends into the background along the wall.

Photograph showing the interior of the powerhouse at the Oak Grove Dam on the Clackamas River. Two large electrical units can be seen, with upper walkways. The building is a large industrial space with tall windows. Written on the negative is "49-293."

Photograph showing two suited men sitting at a desk while speaking on telephones. Both men look down towards the desk, which holds pieces of equipment. Behind the individuals are wall mounted electrical units, other pieces of wooden furniture, and a calendar from "Leonard"s Food Center." On the negative is written "49-46."

Photograph showing a man on a ladder wearing a safety belt holding an electrical line with ceramic insulators. Behind him, two other men in work wear stand higher on the metal frame structure. On the negative is written "49-53."

Photograph of a man in a suit with a microphone, standing in front of a wooden utility pole. Attached to the pole is a metal electrical panel with switches. In the background, a vehicle with an open trunk is visible. On the negative is written "49-66."

Photograph showing a paneled electrical unit with numerous switches. Wires can be seen coming out of the bottom of the unit. On the negative is written "49-81."

Photograph of Oak Grove Dam showing second intake unit generator and five employees in work clothing standing inside the machinery. The building in industrial, with large windows on all visible walls.

Photograph showing exterior and large machinery in Station L building. Several large generators can be seen on the main floor, with all peaked ceiling.

Photograph of interior of Station P at Oak Grove project showing two pieces of large round (generator?) equipment. The building is industrial with large windows on visible walls.

Photograph showing large machinery at Oak grove unit number 1 inside an industrial building. A man in dark hat and coat walks in front.

Photograph of interior of Station P at Oak Grove project showing generator equipment from Pelton Motor Wheel Company. The building is industrial with large windows on visible walls.

Photograph showing two men in hats and coveralls working with a generator component at the Oak Grove powerhouse. One man is facing towards the unit, while another looks towards the camera while facing towards the left. Wooden blocks can be seen under the rotor, which is on the ground.

Photograph showing a large generator component being moved with steel cables inside the Oak Grove powerhouse. In the background, a man can be seen looking upwards, while another is visible at the front of the frame looking towards the camera.

Photograph showing electrical equipment and pipes at Station L (now Oregon Museum of Science and Industry). Several gauges, wheels and levers can be seen throughout the image. In the background, metal sheeting can be seen on the far wall. Written on the image is “8-5-1921.” (Image note: see related images PGE 12-72, PGE 12-76, PGE 12-79).

Photograph showing a large electrical unit (generator) at Station L (now Oregon Museum of Science and Industry). Two holes can be seen in the floor in front of the unit, and several pipes are visible in the background. Written on the negative is “PGE 12-76” and “5-28-21.” Also written on the image in pencil is “E-301-L-3330.” (Image note: see related image PGE 12-72, PGE 12-77, PGE 12-79).

Photograph showing a large electrical unit (generator?) at Station L (now Oregon Museum of Science and Industry). On the left side of the frame is a wooden crate and wooden boards. Written on the negative is “4-19-21.” (Image note: see related image PGE-12-72, PGE 12-76, PGE 12-77).