Photograph of Longwood Historic District — Photograph by Jim.henderson, CC0 1.0. Via Wikimedia Commons.

Denison-White Mansion

Listed on the National Register of Historic Places in 1983. 15 historic topographic surveys show this location, the earliest from 1891.

From the record

“The Longwood Historic District is a recognized historic district located in the center of the Longwood neighborhood in the South Bronx, New York. It encompasses about three square blocks roughly bounded by Beck Street, Longwood, Leggett, and Prospect Avenues.”
Wikipedia article Longwood Historic District (Bronx), CC BY-SA 4.0.

One of 91 National Register listings published here for Bronx County · listed in 1983 · category: Building.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

The listing

What is counted as historic. The nomination lists 59 buildingss as contributing to the listing.
Still standing. The Park Service records this property as extant.
Address. Roughly bounded by Beck St., Longwood, Leggett, and Prospect Aves., New York, 10455
When was it listed? September 1983
Category. building
Borough. The Bronx
National Register reference number. 83001640 - 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

1891 to 1995

The ground this property stands on, surveyed 104 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet covering Denison-White Mansion, surveyed 1995

Topographic sheet covering Denison-White Mansion, surveyed 1891

Fires near this property

2,808 since 2002

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 2,808 fires within 5 miles of Denison-White Mansion between 2002 and 2020, burning about 735 acres in total. 161 started naturally. 151 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	1957
Smoking	183
Natural	161
Arson/incendiarism	151
Recreation and ceremony	142
Debris and open burning	81
Equipment and vehicle use	64
Misuse of fire by a minor	50
Power generation/transmission/distribution	10
Railroad operations and maintenance	6
Other causes	3

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 2016	Recreation and ceremony	under an acre	Fire Department of New York	N/A
9 September 2015	Missing data/not specified/undetermined	under an acre	Fire Department of New York	NA
9 September 2015	Missing data/not specified/undetermined	under an acre	Fire Department of New York	NA
9 September 2014	Missing data/not specified/undetermined	under an acre	Fire Department of New York	not named
9 September 2010	Debris and open burning	under an acre	Fire Department of New York	not named
9 September 2010	Missing data/not specified/undetermined	under an acre	Fire Department of New York	not named
9 September 2010	Missing data/not specified/undetermined	under an acre	Fire Department of New York	not named
9 September 2005	Missing data/not specified/undetermined	under an acre	Fire Department of New York	not named

Every fire recorded in Bronx County

Mines and quarries near this property

10 of 11 shown

Regional context, not property-specific evidence. The federal mineral resources record lists 11 workings within 5 miles of Denison-White Mansion: 9 occurrences, 2 past producers. None of them still produces. What was taken out: Garnet, Iron, Titanium, Gemstone. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status
102nd St & 4th Ave Garnet Deposit	Garnet, Gemstone	Occurrence
155th St & 10th Ave Garnet Deposit	Garnet, Zirconium	Occurrence
159th St & 11th Ave Beryl Deposit	Beryllium	Occurrence
176/178 Sts & 11th Ave Deposit	Titanium, Garnet, Gemstone	Occurrence
200th St & 10th Ave Kyanite Deposit	Kyanite	Occurrence
69th/70th Sts & 2nd Ave Deposit	Iron, Garnet, Titanium	Occurrence
National Gypsum/ Bronx Mill	Gypsum-Anhydrite	Past Producer
Star Sand and Gravel Inc. Pit	Sand and Gravel, Construction	Past Producer
Unnamed Pge Occurrence	Palladium, Platinum	Occurrence
180th St & 10th Ave Rutile Deposit	Titanium	Occurrence

Every working recorded in Bronx County

Maps showing this location

15 surveys

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.

1891 USGS Harlem quadrangle1:62500
1897 USGS Harlem quadrangle1:62500 - 4 printings
1898 USGS Harlem quadrangle1:62500
1900 USGS Harlem quadrangle1:62500 - 16 printings
1947 USGS Central Park quadrangle1:24000
1949 USGS New York quadrangle1:250000
1954 USGS New York quadrangle1:250000 - 2 printings
1956 USGS Central Park quadrangle1:24000 - 2 printings
1957 USGS New York quadrangle1:250000
1958 USGS New York quadrangle1:250000 - 3 printings
1960 USGS New York quadrangle1:250000 - 2 printings
1966 USGS Central Park quadrangle1:24000 - 4 printings
1969 USGS New York quadrangle1:250000
1984 USGS Long Island West quadrangle1:100000 - 2 printings
1995 USGS Central Park quadrangle1:24000

Listed places nearby

6 within 8 miles

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.

Property	Distance	Listed
Casa Amadeo, antigua Casa Hernandez	0.3 miles	2001
Prospect Avenue Subway Station (IRT)	0.3 miles	2004
St. Anselm's Roman Catholic Church and School	0.4 miles	2014
Jackson Avenue Subway Station (IRT)	0.5 miles	2004
Hunts Point Rail Station	0.6 miles	2022
E. Robert Moore Houses	0.6 miles	2025

Sources for this property

National Archives record	The nomination case file for reference 83001640 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
Bronx County	All 91 listed properties in this county.

Provenance

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.