Two photographs: Top image: arrival of first 'Big Red Car' in Monrovia, CA, 1903. Bottom: Sierra Madre Red Line station on Baldwin Avenue, Sierra Madre, CA, 1906. The top image shows the first of Pacific Electric Railway's red trolley car...
Construction of the new Mount Wilson Observatory office building, Pasadena. Excavation shows concrete being poured for basement. The handwritten caption below the photograph reads: "S.B.S. Office building. Sub-basement : rooms for ruling engines....
Two portraits of Charles St. John, originally taken ca. 1905. Taken from photo by Rice Studios, Oberlin, Ohio. St. John is seated in a chair and is wearing a suit.
Portrait photograph of Charles St. John, reading at his desk Originally taken ca. 1910. St. John is wearing a suit, necktie and eyeglasses, and is reading a book.
Yerkes Observatory under construction, looking northeast. The brick work for the first and second floors is complete, and about half of the steel girders are in place for the great dome. The base for the great dome is on the left, and the base of...
Opticians Alvan Graham Clark (1832-1897) and Carl A. R. Lundin of Clark & Sons pose with the 40-inch refracting lens after its delivery to the Yerkes Observatory.
Asian construction workers widening the toll road below Pasadena Gap, Mount Wilson. Most of the men are wearing coveralls and all of them are wearing hats. Rockslides are in the area; shrubs are also seen.
Asian construction workers widening the Mount Wilson toll road. The rock face, a rock retaining wall and shrubs are all visible. Also shown is several men carrying large rocks with ropes tied around them, as a method of transportation.
First horse team and wagon on bend of newly widened Mount Wilson toll road above Martin's camp water tunnel; 1st wagon to go up toll road. Photo taken at 4:30 pm. A pair of horses is leading a wooden wagon and drive up the dirt road. Rocks, trees...
Horse team, wagon and driver on bend of newly widened Mount Wilson toll road above Martin's camp water tunnel; first wagon to go up toll road. closer view than HEH#01331. The two horses are bridled and leading the wooden wagon along the road....
Coupled-gear truck and horse teams on bend of Mount Wilson toll road above Martin's camp water tunnel; they are carrying sections of the 60-foot tower telescope. Several unidentified men are standing along the road near the vehicles. Rocks, trees...
Coupled-gear truck & horse teams on bend of Mt. Wilson toll road above Martin's camp water tunnel; they are carrying sections of the 60-foot tower telescope. Dowd & George Willis Ritchey are pictured. photo taken at 5:35 pm. Rocks, shrubs and...
Schneider's cabin ('halfway house') half-way up the Mount Wilson toll road. Photo taken at 1:30 pm. A double-decker porch surrounds the wooden cabin building. Two unidentified men are sitting in rocking chairs on the lower porch. At the front of...
Construction workers and rock slide on Mount Wilson road near East loop. Photo taken at 4:50 pm. The unidentified men are standing along the dirt mountain road. Rocks and shrubs are visible on the mountainside.
View up the mountainside along Mount Wilson toll road at rocky bend beyond the Pasadena Gap. Photo taken at 2:30 pm. Rocks, trees and shrubs are visible on the mountain side.