Listed on the National Register of Historic Places in 1982. 11 historic topographic surveys show this location, the earliest from 1915.
From the record
“The John Ohm House is a house located at the site of San Joaquin City, 6 miles (9.7 km) southeast of Tracy, California. The large bungalow was built by John Ohm, a prominent rancher in the San Joaquin Valley, in 1908.”
Wikipedia article John Ohm House, CC BY-SA 4.0.
One of 36 National Register listings published here for San Joaquin County · listed in 1982 · category: Building.
National Register reference number.82002256- 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
1915 to 1991
The ground this property stands on, surveyed
76 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
19151991
Fires near this property
129 since 1994
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 129 fires within 5 miles of John Ohm House
between 1994 and 2020, burning about 624 acres in total. None started naturally. 15 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
71
Recreation and ceremony
20
Arson/incendiarism
15
Equipment and vehicle use
13
Debris and open burning
5
Misuse of fire by a minor
3
Smoking
1
Other causes
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 2017
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
9 September 2016
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
28 September 2017
Missing data/not specified/undetermined
2.0 acres
California Department of Forestry & Fire Protection
not named
27 September 2011
Equipment and vehicle use
5.0 acres
Santa Clara Unit
not named
21 September 2018
Missing data/not specified/undetermined
under an acre
California Department of Forestry & Fire Protection
not named
2 September 2007
Recreation and ceremony
1.0 acres
San Joaquin River National Wildlife Refuge
GARDNERS COVE #3
19 September 2018
Missing data/not specified/undetermined
5.0 acres
California Department of Forestry & Fire Protection
Regional context, not property-specific
evidence. The federal mineral resources record lists
3 workings within 5 miles of John Ohm House: 1 occurrence, 1 unknown, 1 producer.
1 still produces. What was taken out: Sand and Gravel, Construction, Gypsum-Anhydrite. 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
Tracy, the town this property stands in, in 4 storm reports between 1997 and 2005: 2 tornado, 1 flash flood, 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.
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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