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Cyrus Grandison Baldwin papers

Identifier: H-Mss-0111

  • Staff Only


This collection contains documents about Cyrus Grandison Baldwin's involvement with water issues in the Pomona Valley and San Bernardino Mountains from 1897-1937.


  • 1891-1955


Language of materials

Languages represented in this collection: English.


This collection is open for research.

Publication Rights

For permissions to reproduce or to publish, please contact Special Collections Library staff.

Biographical Note

Cyrus Grandison Baldwin: Pioneer Developer of Electric Power in the Pomona Valley by Dr. E. Wilson Lyon, President, Pomona College.

Cyrus Grandison Baldwin was first president of Pomona College from 1890-1897. He graduated from Oberlin College, and from that institution he brought to the newly established Congregational college in California . . high academic standards and the principles.

He had some knowledge of the growing use of electric power, both in Europe and in the eastern part of the United States, and he began to think of lighting the Pomona valley and the region as far away as San Bernardino by using the water power of the San Antonio Canyon, [in the San Bernardino Mts.] His enthusiasm was contagious and a group of men in Pomona, some of whom had joined in founding the new college, united with him to establish a company to convert the power of the water into electricity and to bring it to the homes and offices of the new Anglo-Saxon community which was replacing the Spanish ranchos of earlier California. From their efforts the San Antonio Light and Power Company was born in 1891. The company planned to bore a tunnel through the Hogsback at the upper level, thereby establishing a steep flume which would give a drop of nearly 400 feet to the power house below. The power would then be distributed by high voltage transmission to the valley, This practice, a common-place today, had never before been undertaken in California. President Baldwin and his associates were therefore propsing to establish the first hydroelectric installation for high voltage transmision in our state.


1 box

Series Arrangement

Series 1 Water rights and Water use in San Bernardino County, California

Subseries 1.1 Publications

Subseries 1.2 Exhibits with correspondence and reports about water rights and water supply in California

Subseries 1.3 Microfilm

Physical location

Please consult repository.

Acquisition Information



No additions to the collection is anticipated.

Processing Information

Arranged and Processed by Russell Michalak, 2009

Guide to the Cyrus Grandison Baldwin papers, Water Resources Collection
Finding aid created by Russell Michalak, 2009
Description rules
Describing Archives: A Content Standard
Language of description
Script of description
Language of description note
Finding aid written in English.

Repository Details

Part of the 01 - Special Collections, Honnold/Mudd Library Repository

800 North Dartmouth Ave
Claremont CA 91711 United States