Ontario in San Bernardino County, California — The American West (Pacific Coastal)

Ontario Masonic Hall

231-233 North Euclid Avenue

— 1904 —

Ontario Masonic Hall Marker image. Click for full size.

Photographed by Duane and Tracy Marsteller, September 28, 2025

1. Ontario Masonic Hall Marker

Inscription. Constructed by the Ontario Masonic Lodge in the Neoclassical Commercial style of architecture, white brick veneer and intricate dentil details on the cornice enhances the front façade. Accentuating the second story is a decorative triangular pediment over recessed brickwork arranged vertically to give the illusion of Classical Roman columns. The two-story building housed the Masonic Lodge on the upper floor. A public library and the People's Mutual Savings and Loan Association occupied the first floor until the loan company moved next door into their new building. The building represents the early social, cultural and commercial activity in Ontario.

Erected 1998 by City of Ontario, California. (Marker Number 21.)

Topics. This historical marker is listed in these topic lists: Architecture • Fraternal or Sororal Organizations. A significant historical year for this entry is 1904.

Location. 34° 3.922′ N, 117° 39.081′ W. Marker is in Ontario, California, in San Bernardino County. It is on North Euclid Avenue (California Route 83) south of West C Street, on the right when traveling south. Touch for map. Marker is at or near this postal address: 233 N Euclid Ave, Ontario CA 91762, United States of America. Touch for directions.

Regionally, this marker is in Greater Los Angeles,

in the Inland Empire,

in the Peninsular Ranges,

and specifically in the Transverse Ranges.

It is also in the American Southwest.

Globally, it is in North America,

on the Ring of Fire,

in the Pacific Rim,

in the Western Hemisphere,

in the Western World,

and in the Anglosphere.

Historically, it finds itself in what was once New Spain

and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within walking distance of this marker: WCTU Fountain (within shouting distance of this marker);

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Mule Car (about 400 feet away, measured in a direct line); Ontario Town Square (about 400 feet away); Nine Young Pepper Trees (about 600 feet away); Ontario Laundry Company (about 700 feet away); United States Post Office (approx. 0.2 miles away); McCann Block Building (approx. 0.2 miles away); George Chaffey, Jr. (approx. 0.2 miles away). Touch for a list and map of all markers in Ontario.

Ontario Masonic Hall and Marker image. Click for full size.

Photographed by Duane and Tracy Marsteller, September 28, 2025

2. Ontario Masonic Hall and Marker

Marker is at the right side of the building.

Credits. This page was last revised on November 24, 2025. It was originally submitted on November 6, 2025, by Duane and Tracy Marsteller of Murfreesboro, Tennessee. This page has been viewed 102 times since then and 49 times this year. Photos: 1, 2. submitted on November 6, 2025, by Duane and Tracy Marsteller of Murfreesboro, Tennessee.