Photograph showing construction (likely the boiler room) at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). A pile of bricks sits near the front of the frame, and the boilers can be seen further in the background.

Photograph showing the water circulation system at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). A man looks at the camera while a pipe sprays a stream of water into the river. Several large ships and barges can be seen in the distance.

Photograph showing turbine construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Several large machines can be seen in the room, with a hole visible in the brick wall behind.

Photograph showing interior construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Two large pieces of round machinery can be seen in the background, with woods crates in the front.

Photograph showing construction of stack at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). One worker stands on a ledge of the stack, while two others look at the camera.

Photograph showing the boilers at Station E in northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue. Written at the top of each boiler is “Cahall Safety Boiler, The Aultman & Taylor MCH Y Co. Builders, Mansfield, Ohio.”

Photograph showing the boilers at Station E in northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue. Written at the top of each boiler is “Cahall Safety Boiler, The Aultman & Taylor MCH Y Co. Builders, Mansfield, Ohio.”

Photograph taken at Station L (later the Oregon Museum of Science and Industry), looking downward at two generators. The far unit is being rewound with visible cable. Pieces of debris can be seen around the room, in addition to possible damage on the back wall. Large windows can be seen along the left wall, and metal plating lines the back wall.

Photograph showing the boiler room at Station L (now the Oregon Museum of Science and Industry). A long row of boiler doors can be seen, and a man in a hat and overalls stands in front of one while looking at the camera. Large metal beams can be seen at the top of the boiler stuctures.

Photograph taken from a high angle of the hog fuel pile at Station L (now the Oregon Museum of Science and Industry), looking south. The Willamette River can be seen on the right side of the frame, and two unidentified churches can be seen in the distance.

Photograph taken at Station L (now the Oregon Museum of Science and Industry) of hog fuel being unloaded via a derrick from a barge on the Willamette River. The Hawthorne bridge can be seen in the distance, as well as other boats. One person stands on the barge watching a crate being lifted onto the dock.

Photograph taken at Station L (now the Oregon Museum of Science and Industry) of hog fuel being unloaded via a derrick from a barge on the Willamette River. The Hawthorne bridge can be seen in the distance.

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 an oil tank during construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Near the top of the frame, several men look at the camera.

Photograph showing four men posing with boilers at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Two men stand at the front of the boilers while two others peak out near the top.

Photograph showing generator units under construction at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Behind the units, brick walls can be seen, with a ladder installed.

Photograph showing engines at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). A man in overalls stands on a platform on the left side of the frame.

Photograph showing the interior of Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue), taken from a high angle. Several large pieces of machinery can be seen throughout the run, as well as electric lights.

Photograph showing an engine exciter at Station E (northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue). Two men in overalls stand to the left of the machine, looking at the camera. The man on the right is holding a small mechanical wheel.

Photograph taken at Station L (later the Oregon Museum of Science and Industry) taken from a high angle showing wooden pilings over water in the foreground, with piles of cut logs in the distance. Several people can be seen on a wooden structure at the left side of the frame, as well as a group standing on a raised platform cutting logs towards the right side. In the distance, a building on a raised dock structure with a large “Portland Railway, Light & Power Co.” sign can be seen. Written on the glass is “L276.”

Photograph taken of the hog fuel pile at Station L (now the Oregon Museum of Science and Industry). An unhitched wagon sits at the base of the hill to the right, and a “no trespassing” sign is visible near the center of the frame. In the distance, a person can be seen standing at the top of a pile.

Photograph showing brickwork of furnace of boiler #6. Bricks are visible on all walls, and an arched opening in the middle of the frame is built of bricks.

Photograph showing five men looking at the camera and standing in the metal framework on a support tower in the process of being built. Water and a section of a dock can be seen on the right side of the image, next to a large brick building with several rows of windows. Written on the negative in pencil is “E-301-L-3269, first panel of tower support for cinder collector, Sta. L., May 13 1922.”

Photograph showing wooden pilings under set in water at Station L (now the location of the Oregon Museum of Science and Industry).. Behind the orderly pilings is a raised wooden on which rests several pieces of large equipment. Two men in long jackets can be seen near the center of the frame, in addition to several workers in the background of the image. Written on the glass is “L274.”

Photograph of an electrical unit (generator?) at Station L (now Oregon Museum of Science and Industry). A set up steps leads to an upper part of the unit, next to several round gauges. In the background, several other pieces of electrical equipment can be seen in front of large windows.

Photograph showing the interior of Station C in northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue. Large wheeled mechanisms are visible.

Photograph showing the interior of Station C in northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue. Large wheeled mechanisms are visible, and a man can be seen looking at the camera while sitting near the building wall.

Photograph showing the interior of Station C in northwest Portland, near the intersection of NW 21st Avenue and NW Sherlock Avenue. On the generator nearest the camera is written “General Electric Company.”