Rosemead in Los Angeles County, California — The American West (Pacific Coastal)

Dinsmoor Heritage House

Photographed by Teresa Diaz, SDDGP NSGW, June 6, 2015

1. Dinsmoor Heritage House Marker

Inscription. In 1974, the city of Rosemead purchased the 1929 Dinsmoor family home and property from Isabel Dinsmoor Putnam as a bicentennial project.

The property was originally part of the 164-acre Savannah Ranch owned by pioneer John Guess. A 33-acre parcel named “Edgemont Park”, was sold to J.W. Robinson, of Robinson’s department store fame. The property was then acquired in 1916 by A.O. Dinsmoor, Isabel’s father, who turned it into a large prosperous dairy.

The city of Rosemead is preserving the historic house and lovely grounds for present and future Rosemead residents to enjoy glimpses of a bygone era.

Erected 2015 by Native Sons of the Golden West Ramona Parlor #109.

Topics and series. This historical marker is listed in this topic list: Notable Buildings. In addition, it is included in the Native Sons/Daughters of the Golden West series list. A significant historical year for this entry is 1929.

Location. 34° 4.783′ N, 118° 3.55′ W. Marker is in Rosemead, California, in Los Angeles County. It is at the intersection of Steele Street and Ellis Lane, on the right when traveling east on Steele Street. Touch for map. Marker is at or near this postal address: 9632 Steele Street, Rosemead CA 91770, United States of America. Touch for directions.

Regionally, this marker is in Greater Los Angeles

and in the Transverse Ranges.

It is also on the American Pacific Coast.

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: John Tibbett (approx. half a mile away); Samuel King (approx. half a mile away); Dr. Thomas A. Mayes

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(approx. half a mile away); Japanese Markers (approx. half a mile away); Archie N. Wiggins (approx. half a mile away); Andrew J. King (approx. half a mile away); Norman C. Morgan (approx. half a mile away); Elwood Wiggins (approx. half a mile away). Touch for a list and map of all markers in Rosemead.

Dinsmoor Heritage House and Marker image. Click for full size.

Photographed by Teresa Diaz, SDDGP NSGW, July 20, 2015

2. Dinsmoor Heritage House and Marker

The marker is on a pedestal to the left of the door.

Credits. This page was last revised on April 21, 2026. It was originally submitted on June 29, 2021, by James King of San Miguel, California. This page has been viewed 1,921 times since then and 171 times this year. Photos: 1, 2. submitted on June 29, 2021, by James King of San Miguel, California. • Syd Whittle was the editor who published this page.