Marker Logo HMdb.org THE HISTORICAL
MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Mentone in San Bernardino County, California — The American West (Pacific Coastal)
 

Henry Harbinson Sinclair

1858-1914

 
 
Henry Harbinson Sinclair Marker image. Click for full size.
Photographed By Craig Baker, May 4, 2022
1. Henry Harbinson Sinclair Marker
Inscription.  In memory of Henry Harbinson Sinclair, 1858-1914. A testimonial to his high and useful service as a pioneer in the establishment and development of the hydro electric industry in California.
 
Erected 1920 by Southern California Edison Company.
 
Topics and series. This historical marker is listed in these topic lists: Industry & CommerceScience & Medicine. In addition, it is included in the ASCE Civil Engineering Landmarks series list.
 
Location. 34° 5.318′ N, 117° 2.352′ W. Marker is near Mentone, California, in San Bernardino County. Marker is on Mill Creek Road (California Route 38) one mile east of Bryant Street, on the right when traveling east. Located near Mill Creek #3 Power House. Touch for map. Marker is at or near this postal address: 35168 Mill Creek Road, Mentone CA 92359, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are within 8 miles of this marker, measured as the crow flies. Camp Mill Creek (approx. 0.8 miles away); The Greenspot Market (approx. 3.6 miles away); Greenspot Road Bridge (approx. 3.9 miles away); Yucaipa Adobe
Henry Harbinson Sinclair Marker image. Click for full size.
Photographed By Michael Kindig, August 19, 2012
2. Henry Harbinson Sinclair Marker
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(approx. 5.8 miles away); Yucaipa Rancheria (approx. 5.8 miles away); Mill Creek Zanja (approx. 6.7 miles away); a different marker also named Mill Creek Zanja (approx. 7.6 miles away); First Lugonia School (approx. 7.8 miles away). Touch for a list and map of all markers in Mentone.
 
Also see . . .  ASCE / IEEE Historical Marker. This site is an ASCE California Historic Civil Engineering Landmark, jointly designated with IEEE in 1977. When the Mill Creek project began generating electricity on September 7, 1893, it was the first commercial use of 3-phase alternating current generators in the United States. Today, 3-phase generators are the primary form of power generation around the world. (Submitted on August 19, 2020, by Craig Baker of Sylmar, California.) 
 
Henry Harbinson Sinclair Marker image. Click for full size.
Photographed By Michael Kindig, August 19, 2012
3. Henry Harbinson Sinclair Marker
Henry Harbinson Sinclair Marker image. Click for full size.
Photographed By Craig Baker, May 4, 2022
4. Henry Harbinson Sinclair Marker
Mill Creek #3 Power House image. Click for full size.
Photographed By Craig Baker, May 4, 2022
5. Mill Creek #3 Power House
Hydro Electric facility, near the marker.
 
 
Credits. This page was last revised on May 12, 2022. It was originally submitted on August 21, 2012. This page has been viewed 591 times since then and 30 times this year. Last updated on August 19, 2020, by Craig Baker of Sylmar, California. Photos:   1. submitted on May 12, 2022, by Craig Baker of Sylmar, California.   2, 3. submitted on August 21, 2012, by Michael Kindig of Long Beach, California.   4, 5. submitted on May 12, 2022, by Craig Baker of Sylmar, California. • J. Makali Bruton was the editor who published this page.

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May. 16, 2022