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Platteville in Grant County, Wisconsin — The American Midwest (Great Lakes)
 

Major John Roundtree House

 
 
Major John Roundtree House Marker image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
1. Major John Roundtree House Marker
Inscription.
This property has been
placed on the
National Register
of Historic Places

by the United States
Department of the Interior

 
Topics and series. This historical marker is listed in these topic lists: ArchitectureEducationSettlements & Settlers. In addition, it is included in the National Register of Historic Places (NRHP) series list. A significant historical year for this entry is 1854.
 
Location. 42° 43.935′ N, 90° 28.691′ W. Marker is in Platteville, Wisconsin, in Grant County. It can be reached from Rountree Avenue just south of East Pine Street (State Highway 81), on the right when traveling south. The marker is mounted at eye-level near the northeast corner of the subject building. Touch for map. Marker is at or near this postal address: 150 Rountree Avenue, Platteville WI 53818, United States of America. Touch for directions.

Regionally, this marker is in the American Midwest, on the Great Lakes, in the Corn Belt, in the Driftless Area — Bluff Country, and in the Great River Road Region. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically,
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it finds itself in what was once the territory of the Mississippian Culture and also the Northwest Territory.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Platteville's First Church Building (about 800 feet away, measured in a direct line); Lincoln's Gettysburg Speech (approx. 0.2 miles away); C. C. Grindell House (approx. 0.2 miles away); Civic Memorial Building (approx. 0.2 miles away); Main Street Commercial Historic District Platteville (approx. 0.2 miles away); The Frank Burg House (approx. Ό mile away); First Congregational Church (approx. Ό mile away); First State Normal School (approx. Ό mile away). Touch for a list and map of all markers in Platteville.
 
Regarding Major John Roundtree House. National Register of Historic Places #86001307.
From the National Register Nomination:
Built in 1854, the Rountree Mansion is both architecturally and historically significant in the local community of Platteville. The richly appointed Greek Revival residence represents a unique, southern-influenced architectural design for mid-19th century Platteville and is one of the community's best-preserved
Wisconsin State Register of Historic Places Marker image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
2. Wisconsin State Register of Historic Places Marker
(mounted above the National Register marker)
This property is listed in the
Wisconsin
State Register of
Historic Places

The State Historical Society of Wisconsin
homes from its early developmental period. Historically, the home is associated with Major John H. Rountree — pioneer lead miner, politician, entrepreneur and recognized founder of the southwestern mining community of Platteville. Rountree's efforts as a businessman, developer and political leader helped shape much of the early development of nineteenth century Platteville and the expanding Grant County region.

The main house is a substantial, two-story brick residence with a gabled roof and rubble sandstone foundation. Greek Revival in form, the imposing structure features a triangular pediment on the north facing, front facade, which sits over a simply detailed elevation containing three second floor windows and two 1st floor openings with a large transomed and sidelit doorway to one side. All windows are 6/6 pane wood sash with heavy stone lintels and slender lug sills. An elegant two-story, balustraded porch runs across the entire east elevation, supported by carved rectangular posts on wooden plinths. The upper-level columns are octagonal in form. The gallery porch shades tall, asymmetrically placed, 9/9 wooden windows capped with trabeated stone lintels. The southernmost openings are slender transomed doors leading onto the porch; also capped with sandstone lintels. Sizable brick chimneys project from the roofline, clearly pointing out the location of interior fireplaces. The cornice line of the entire structure is marked by distinctive brackets with curvilinear pendants mounted on a wide, plain wooden frieze.


 
Also see . . .
1. John H. Rountree Mansion (Wikipedia).
Major John H. Roundtree Marker image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
3. Major John H. Roundtree Marker
(mounted below the National Register marker)
Home of
Maj. John H. Roundtree
A founder of Platteville
1827.
Links to National Register of Historic Places Nomination Form:
Excerpt:
John H. Rountree was one of the founders of Platteville. He was a veteran of the Black Hawk War who served in the Wisconsin State Senate and the Wisconsin State Assembly. The house remained in Rountree's family for several decades before one of his descendants left the house to the state. For a number of years, it was used as the residence for the Chancellor of what is now the University of Wisconsin-Platteville.
(Submitted on December 20, 2023, by Cosmos Mariner of Cape Canaveral, Florida.) 

2. J. H. Roundtree House (Society of Architectural Historians). Excerpt:
(by Marsha Weisiger et al.) This dramatic Greek Revival house was the home of Platteville’s founder, John H. Rountree. A native of Kentucky, Rountree came to Wisconsin’s lead-mining region as a prospector, staking a claim along the Little Platte River in 1827 and building a lead-smelting furnace the following year. Before long, a settlement grew up around the mine, leading Rountree to establish the village of Platteville in 1834. In numerous ways Rountree built Platteville into a community.
House Restoration Marker image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
4. House Restoration Marker
(mounted below the National Register marker)
Restored through the efforts of
Dr. and Mrs. C. O. Newlun
for the State of Wisconsin.
Dr. Newlun, President 1943-1958
He opened its first store and its first newspaper, helped organize one of the state’s first Methodist Episcopal churches, and erected the first village school. He also served the area as a judge, a territorial representative, a constitutional convention delegate, and a state senator.
(Submitted on December 20, 2023, by Cosmos Mariner of Cape Canaveral, Florida.) 
 
Major John Roundtree House Marker(s) image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
5. Major John Roundtree House Marker(s)
These four related historical markers are mounted at the northeast corner of the Roundtree house, between the east verandah and the north first-floor window.
Major John Roundtree House (<i>north elevation</i>) image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
6. Major John Roundtree House (north elevation)
Major John Roundtree House (<i>east elevation</i>) image. Click for full size.
Photographed by Cosmos Mariner, September 11, 2023
7. Major John Roundtree House (east elevation)
 
 
Credits. This page was last revised on May 26, 2026. It was originally submitted on December 19, 2023, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 689 times since then and 60 times this year. Photos:   1, 2, 3, 4, 5, 6, 7. submitted on December 20, 2023, by Cosmos Mariner of Cape Canaveral, Florida.
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Jul. 23, 2026