Listed on the National Register of Historic Places in 1974. 16 historic topographic surveys show this location, the earliest from 1894.
From the record
“The Phillips Mansion is a Second Empire style historic house in Pomona, Los Angeles County, California. It was built in 1875 by Louis Phillips, who by the 1890s had become the wealthiest man in Los Angeles County.”
Wikipedia article Phillips Mansion, CC BY-SA 4.0.
One of 616 National Register listings published here for Los Angeles County · listed in 1974 · category: Building.
Architectural style. Second Empire architecture in the United States and Canada
National Register reference number.74000525- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Then and now
1894 to 1982
The ground this property stands on, surveyed
88 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
18941982
Fires near this property
529 since 1993
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 529 fires within 5 miles of Phillips Mansion
between 1993 and 2020, burning about 938 acres in total. 1 started naturally. 68 were recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Missing data/not specified/undetermined
322
Arson/incendiarism
68
Smoking
50
Equipment and vehicle use
36
Misuse of fire by a minor
32
Debris and open burning
13
Power generation/transmission/distribution
4
Fireworks
2
Recreation and ceremony
1
Natural
1
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Date
Cause
Size
Reported by
Name on the report
9 September 2005
Recreation and ceremony
under an acre
California Department of Forestry & Fire Protection
not named
9 September 2005
Smoking
under an acre
California Department of Forestry & Fire Protection
not named
7 September 2008
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
5 September 2009
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
5 September 2008
Equipment and vehicle use
under an acre
California Department of Forestry & Fire Protection
not named
5 September 2005
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
5 September 2005
Arson/incendiarism
under an acre
California Department of Forestry & Fire Protection
Regional context, not property-specific
evidence. The federal mineral resources record lists
4 workings within 5 miles of Phillips Mansion: 2 past producers, 1 producer, 1 prospect.
1 still produces. What was taken out: Diatomite, Clay. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Pomona, the town this property stands in, in 3 storm reports in 1998: 1 flash flood, 1 thunderstorm wind, 1 funnel cloud.
No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office
filed it, from the NOAA Storm Events Database, and each date
opens the federal record of that event.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then
testing that coordinate against the published boundary of every sheet.
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.
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