List of National Historic Landmarks in Ohio

This is a List of National Historic Landmarks in Ohio and other landmarks of equivalent landmark status in the state. The United States' National Historic Landmark (NHL) program is operated under the auspices of the National Park Service, and recognizes structures, districts, objects, and similar resources according to a list of criteria of national significance.[1] There are 73 NHLs in Ohio and four additional National Park Service-administered areas of primarily historic importance.[2]


Current National Historic Landmarks in Ohio

Ohio's National Historic Landmarks are distributed across 35 of the 88 counties in the state. With fourteen NHLs, Hamilton County has more than any other county.

[3] Landmark name Image Date designated[4] Location County Description
1 Adena
Adena Mansion
February 27, 2003
(#70000515)
 Chillicothe
39°21′13″N 83°00′55″W / 39.353613°N 83.015345°W / 39.353613; -83.015345 (Adena)		 Ross Mansion of Thomas Worthington
2 Baum-Taft House
Taft Museum of Art
January 7, 1976
(#73001470)
 Cincinnati
39°06′09″N 84°30′12″W / 39.1025°N 84.503333°W / 39.1025; -84.503333 (Baum-Taft House)		 Hamilton Taft family home now an art museum
3 Beginning Point of the U.S. Public Land Survey
Front of the monument
June 23, 1965
(#66000606)
 East Liverpool, OH and Ohioville, PA
40°38′26″N 80°31′10″W / 40.640487°N 80.519377°W / 40.640487; -80.519377 (Beginning Point of the U.S. Public Land Survey)		 Columbiana, OH and Beaver, PA Marker of origin of Northwest Territories survey, on Pennsylvania border
4 Carew Tower-Netherland Plaza Hotel
Carew Tower-Netherland Plaza Hotel
April 19, 1994
(#82003578)
 Cincinnati
39°05′56″N 84°31′31″W / 39.099012°N 84.525224°W / 39.099012; -84.525224 (Carew Tower-Netherland Plaza Hotel)		 Hamilton
5 Central Branch, National Home for Disabled Volunteer Soldiers
Central Branch, National Home for Disabled Volunteer Soldiers
October 16, 2012
(#03001412)
 Dayton
39°44′33″N 84°15′52″W / 39.742368°N 84.26458°W / 39.742368; -84.26458 (Central Branch, National Home for Disabled Volunteer Soldiers)		 Montgomery
6 Cincinnati Music Hall
Cincinnati Music Hall
December 2, 1974
(#70000496)
 Cincinnati
39°06′32″N 84°31′06″W / 39.108928°N 84.518286°W / 39.108928; -84.518286 (Cincinnati Music Hall)		 Hamilton
7 Cincinnati Observatory
Original building atop Mt. Lookout
December 9, 1997
(#80003043)
 Cincinnati
39°08′27″N 84°25′22″W / 39.140935°N 84.422699°W / 39.140935; -84.422699 (Cincinnati Observatory)		 Hamilton
8 Cincinnati Union Terminal
Exterior view of the Cincinnati Museum Center
May 5, 1977
(#72001018)
 Cincinnati
39°06′35″N 84°31′56″W / 39.109778°N 84.532190°W / 39.109778; -84.532190 (Cincinnati Union Terminal)		 Hamilton
9 Cincinnati Zoo Historic Structures
Elephant house at the Cincinnati Zoo
February 27, 1987
(#87000905)
 Cincinnati
39°08′33″N 84°30′34″W / 39.142493°N 84.509395°W / 39.142493; -84.509395 (Cincinnati Zoo Historic Structures)		 Hamilton
10 Cleveland Arcade
Interior of The Arcade in downtown Cleveland
May 15, 1975
(#73001408)
 Cleveland
41°29′59″N 81°41′27″W / 41.499702°N 81.690794°W / 41.499702; -81.690794 (Cleveland Arcade)		 Cuyahoga
11 USS COD (Submarine)
USS Cod (SS-224), about 40 miles south of Block Island, R.I., December 1951
January 14, 1986
(#86000088)
 Cleveland
41°30′30″N 81°41′32″W / 41.508328°N 81.692132°W / 41.508328; -81.692132 (USS COD (Submarine))		 Cuyahoga
12 Jay Cooke Home
Jay Cooke Home
November 13, 1966
(#66000620)
 Gibraltar Island
41°39′29″N 82°49′16″W / 41.658056°N 82.821111°W / 41.658056; -82.821111 (Jay Cooke Home)		 Ottawa Summer home of financier Jay Cooke
13 Covington And Cincinnati Suspension Bridge
photo
May 15, 1975
(#75000786)
 Cincinnati, OH and Covington, KY
39°05′25″N 84°30′34″W / 39.09039°N 84.509571°W / 39.09039; -84.509571 (Covington And Cincinnati Suspension Bridge)		 Hamilton, OH and Kenton, KY John A. Roebling's suspension bridge here was dramatic new design. It set precedent for Brooklyn Bridge later.
14 Manasseh Cutler Hall, Ohio University
Manasseh Cutler Hall, Ohio University
December 21, 1965
(#66000604)
 Athens
39°19′27″N 82°06′02″W / 39.324184°N 82.100512°W / 39.324184; -82.100512 (Manasseh Cutler Hall, Ohio University)		 Athens
15 DONALD B (Towboat)
alt=Black-and-white photo of long towboat on the water
December 20, 1989
(#89002458)
 Bellaire
40°01′16″N 80°44′17″W / 40.02111°N 80.73805°W / 40.02111; -80.73805 (DONALD B (Towboat))		 Belmont The Donald B. was built in 1923 and is the only 1920s unchanged diesel sternwheel towboat left in the United States. It still operates towing barges in the Ohio River.[5] After years of being located in Switzerland County, Indiana, its home port was moved to Bellaire, Ohio in 2012.[6]
16 Paul Laurence Dunbar House
Paul Lawrence Dunbar House
December 29, 1962
(#66000619)
 Dayton
39°45′27″N 84°13′07″W / 39.757366°N 84.218681°W / 39.757366; -84.218681 (Paul Laurence Dunbar House)		 Montgomery Home of black poet Paul Laurence Dunbar
17 Thomas A. Edison Birthplace
Thomas A. Edison Birthplace
January 12, 1965
(#66000608)
 Milan
41°17′53″N 82°36′18″W / 41.29799°N 82.605054°W / 41.29799; -82.605054 (Thomas A. Edison Birthplace)		 Erie
18 Wilson Bruce Evans House
Wilson Bruce Evans House
December 9, 1997
(#80003143)
 Oberlin
41°17′20″N 82°12′59″W / 41.288888°N 82.216321°W / 41.288888; -82.216321 (Wilson Bruce Evans House)		 Lorain
19 Fallen Timbers Battlefield
Fallen Timbers Battlefield
October 9, 1960
(#66000616)
 Maumee
41°32′32″N 83°41′51″W / 41.542262°N 83.697445°W / 41.542262; -83.697445 (Fallen Timbers Battlefield)		 Lucas
20 Fort Ancient
Fort Ancient
July 19, 1964
(#66000625)
 Lebanon
39°24′29″N 84°05′28″W / 39.40806°N 84.0911°W / 39.40806; -84.0911 (Fort Ancient)		 Warren
21 Fort Meigs
Fort Meigs
August 4, 1969
(#69000151)
 Perrysburg
41°33′03″N 83°39′05″W / 41.550806°N 83.651523°W / 41.550806; -83.651523 (Fort Meigs)		 Wood
22 James A. Garfield Home
James A. Garfield Home
January 28, 1964
(#66000613)
 Mentor
41°39′49″N 81°21′04″W / 41.663616°N 81.351052°W / 41.663616; -81.351052 (James A. Garfield Home)		 Lake
23 Joshua R. Giddings Law Office
1936 HABA photo
May 30, 1974
(#74001396)
 Jefferson
41°44′40″N 80°46′10″W / 41.744563°N 80.769422°W / 41.744563; -80.769422 (Joshua R. Giddings Law Office)		 Ashtabula
24 Glendale Historic District
Glendale Historic District
May 5, 1977
(#76001447)
 Glendale
39°16′18″N 84°27′49″W / 39.271634°N 84.46362°W / 39.271634; -84.46362 (Glendale Historic District)		 Hamilton
25 U.S. Grant Boyhood Home
U.S. Grant Boyhood Home
February 4, 1985
(#76001374)
 Georgetown
38°51′57″N 83°54′08″W / 38.865814°N 83.902148°W / 38.865814; -83.902148 (U.S. Grant Boyhood Home)		 Brown
26 Warren G. Harding Home
Warren G. Harding Home
June 23, 1965
(#66000618)
 Marion
40°35′11″N 83°07′18″W / 40.586279°N 83.121691°W / 40.586279; -83.121691 (Warren G. Harding Home)		 Marion
27 Hawthorn Hill
Winter photo
July 17, 1991
(#74001585)
 Oakwood
39°43′13″N 84°10′34″W / 39.720416°N 84.176224°W / 39.720416; -84.176224 (Hawthorn Hill)		 Montgomery The Orville Wright mansion.
28 Hopeton Earthworks
Hopeton Earthworks
July 19, 1964
(#66000623)
 Hopetown
39°22′47″N 82°59′08″W / 39.379604°N 82.985474°W / 39.379604; -82.985474 (Hopeton Earthworks)		 Ross
29 Huffman Prairie Flying Field
Replica of Wright Brothers' hangar and catapult at Huffman Prairie
June 21, 1990
(#71000640)
 Fairborn
39°48′12″N 84°03′57″W / 39.803333°N 84.065833°W / 39.803333; -84.065833 (Huffman Prairie Flying Field)		 Greene
30 Johnson's Island Civil War Prison
The cemetery at Johnson's Island
June 21, 1990
(#75001514)
 Danbury
41°29′42″N 82°44′12″W / 41.494998°N 82.73675°W / 41.494998; -82.73675 (Johnson's Island Civil War Prison)		 Ottawa
31 Charles F. Kettering House
Seen through a group of trees
December 22, 1977
(#77001080)
 Kettering
39°41′33″N 84°11′34″W / 39.692590°N 84.192796°W / 39.692590; -84.192796 (Charles F. Kettering House)		 Montgomery
32 Kirtland Temple
Kirtland Temple
December 8, 1976
(#69000145)
 Kirtland
41°37′33″N 81°21′44″W / 41.625958°N 81.362149°W / 41.625958; -81.362149 (Kirtland Temple)		 Lake
33 John Mercer Langston House
John Mercer Langston House
May 15, 1975
(#75001464)
 Oberlin
41°17′30″N 82°12′31″W / 41.291556°N 82.208590°W / 41.291556; -82.208590 (John Mercer Langston House)		 Lorain
34 Langstroth Cottage
Langstroth Cottage
December 21, 1981
(#76001378)
 Oxford
39°30′17″N 84°43′49″W / 39.504648°N 84.730223°W / 39.504648; -84.730223 (Langstroth Cottage)		 Butler
35 Edward D. Libbey House
Edward D. Libbey House
May 4, 1983
(#83004379)
 Toledo
41°39′38″N 83°33′32″W / 41.660549°N 83.559008°W / 41.660549; -83.559008 (Edward D. Libbey House)		 Lucas
36 Benjamin Lundy House
Benjamin Lundy House
May 30, 1974
(#74001537)
 Mt. Pleasant
40°10′22″N 80°48′14″W / 40.172827°N 80.803897°W / 40.172827; -80.803897 (Benjamin Lundy House)		 Jefferson
37 MAJESTIC (Showboat)
Majestic moored at Cincinnati in 2010
December 20, 1989
(#80003085)
 Cincinnati
39°05′42″N 84°30′17″W / 39.09497°N 84.50467°W / 39.09497; -84.50467 (MAJESTIC (Showboat))		 Hamilton
38 William H. McGuffey Boyhood Home Site
Overview of the McGuffey Boyhood Home Site
May 23, 1966
(#66000617)
 Coitsville Township
41°06′57″N 80°33′31″W / 41.115833°N 80.558611°W / 41.115833; -80.558611 (William H. McGuffey Boyhood Home Site)		 Mahoning
39 William H. McGuffey House
William H. McGuffey House
December 21, 1965
(#66000605)
 Oxford
39°30′26″N 84°44′10″W / 39.507230°N 84.736078°W / 39.507230; -84.736078 (William H. McGuffey House)		 Butler
40 William McKinley Tomb
The McKinley National Memorial, photographed on March 18, 2005
May 15, 1975
(#70000516)
 Canton
40°48′24″N 81°23′33″W / 40.806667°N 81.3925°W / 40.806667; -81.3925 (William McKinley Tomb)		 Stark
41 Miami and Erie Canal Deep Cut
Deep Cut in 2008
January 29, 1964
(#66000603)
 Spencerville
40°41′15″N 84°21′55″W / 40.6875°N 84.365278°W / 40.6875; -84.365278 (Miami and Erie Canal Deep Cut)		 Allen and Auglaize Mile long segment of the Miami and Erie Canal cut as deep as 52 feet (16 m), in order to cut a trough through a blue clay ridge separating the St. Marys and Auglaize River watersheds
42 Mount Pleasant Historic District
Mount Pleasant Historic District
April 5, 2005
(#74001536)
 Mt. Pleasant
40°10′28″N 80°47′55″W / 40.174444°N 80.798611°W / 40.174444; -80.798611 (Mount Pleasant Historic District)		 Jefferson
43 Newark Earthworks
View of one end of the Great Circle Earthworks, part of the Newark Earthworks
July 19, 1964
(#66000614)
 Heath and Newark
40°02′32″N 82°25′48″W / 40.042167°N 82.430111°W / 40.042167; -82.430111 (Newark Earthworks)		 Licking
44 Oberlin College
The Oberlin campus in 1909
December 21, 1965
(#66000615)
 Oberlin
41°17′35″N 82°13′07″W / 41.292929°N 82.218576°W / 41.292929; -82.218576 (Oberlin College)		 Lorain
45 Ohio and Erie Canal
Ohio and Erie Canal
November 13, 1966
(#66000607)
 Valley View
41°22′14″N 81°36′59″W / 41.370525°N 81.616442°W / 41.370525; -81.616442 (Ohio and Erie Canal)		 Cuyahoga A four mile (6 km) section of canal, including Tinkers Creek Aqueduct
46 Ohio Statehouse
West facade of the Ohio Statehouse
December 22, 1977
(#72001011)
 Columbus
39°57′02″N 82°59′55″W / 39.950536°N 82.998728°W / 39.950536; -82.998728 (Ohio Statehouse)		 Franklin
47 Ohio Theatre
The Ohio Theatre
May 5, 1977
(#73001437)
 Columbus
39°57′37″N 82°59′57″W / 39.960281°N 82.999078°W / 39.960281; -82.999078 (Ohio Theatre)		 Franklin
48 John P. Parker House
John P. Parker House
February 18, 1997
(#97000340)
 Ripley
38°44′56″N 83°50′56″W / 38.748852°N 83.848872°W / 38.748852; -83.848872 (John P. Parker House)		 Brown
49 George Hunt Pendleton House
George Hunt Pendleton House
January 29, 1964
(#66000611)
 Cincinnati
39°06′36″N 84°30′16″W / 39.110102°N 84.504483°W / 39.110102; -84.504483 (George Hunt Pendleton House)		 Hamilton
50 Pennsylvania Railroad Depot and Baggage Room
Pennsylvania Railroad Depot and Baggage Room
June 17, 2011
(#76001536)
 Dennison
40°23′32″N 81°19′56″W / 40.392155°N 81.332178°W / 40.392155; -81.332178 (Pennsylvania Railroad Depot and Baggage Room)		 Tuscarawas
51 People's Federal Savings and Loan Association
Unusual architecture of the 1918 Thrift Building, home to the People's Federal Savings and Loan.
December 22, 1977
(#72001042)
 Sidney
40°17′04″N 84°09′23″W / 40.284410°N 84.156437°W / 40.284410; -84.156437 (People's Federal Savings and Loan Association)		 Shelby Louis Sullivan-designed bank building
52 Plum Street Temple
The Issac M. Wise Temple
May 15, 1975
(#72001021)
 Cincinnati
39°06′14″N 84°31′07″W / 39.103937°N 84.518678°W / 39.103937; -84.518678 (Plum Street Temple)		 Hamilton
53 John Rankin House
John Rankin House
February 18, 1997
(#70000485)
 Ripley
38°45′04″N 83°50′32″W / 38.751111°N 83.842222°W / 38.751111; -83.842222 (John Rankin House)		 Brown Home of John Rankin, abolitionist.
54 Captain Edward V. Rickenbacker House
Rickenbacker House
May 11, 1976
(#76001426)
 Columbus
39°56′58″N 82°57′44″W / 39.949339°N 82.962179°W / 39.949339; -82.962179 (Captain Edward V. Rickenbacker House)		 Franklin
55 S. Bridge, National Road
2009 photo
January 29, 1964
(#66000610)
 Old Washington
40°02′36″N 81°22′27″W / 40.043298°N 81.374300°W / 40.043298; -81.374300 (S. Bridge, National Road)		 Guernsey
56 Serpent Mound
Serpent Mound - an ancient Native American ceremonial structure
July 19, 1964
(#66000602)
 Locust Grove
39°01′00″N 83°26′00″W / 39.016666666666666°N 83.43333333333334°W / 39.016666666666666; -83.43333333333334 (Serpent Mound)		 Adams
57 Sherman Birthplace
Sherman Birthplace
January 29, 1964
(#66000609)
 Lancaster
39°42′49″N 82°36′04″W / 39.713722°N 82.600988°W / 39.713722; -82.600988 (Sherman Birthplace)		 Fairfield
58 Dr. Bob's Home (Dr. Robert and Anne Smith House)
Dr. Bob's Home (Dr. Robert and Anne Smith House)
October 16, 2012
(#85003411)
 Akron
41°05′45″N 81°32′57″W / 41.095797°N 81.549234°W / 41.095797; -81.549234 (Dr. Bob's Home (Dr. Robert and Anne Smith House))		 Summit Birthplace of Alcoholics Anonymous,[7] co-founded by Bob Smith (doctor)
59 Spacecraft Propulsion Research Facility (B-2)
Spacecraft Propulsion Research Facility (B-2)
October 3, 1985
(#85002802)
 Sandusky
41°21′55″N 82°41′01″W / 41.365141°N 82.6837°W / 41.365141; -82.6837 (Spacecraft Propulsion Research Facility (B-2))		 Erie the world's only facility capable of testing full-scale upper-stage launch vehicles and rocket engines under simulated high-altitude conditions.
60 Spiegel Grove (Rutherford B. Hayes Home)
The Hayes' home called Spiegel Grove
January 29, 1964
(#66000624)
 Fremont
41°20′31″N 83°07′35″W / 41.342037°N 83.126354°W / 41.342037; -83.126354 (Spiegel Grove (Rutherford B. Hayes Home))		 Sandusky Estate of U.S. president Rutherford B. Hayes, now a state park
61 Spring Grove Cemetery
Weeping statue at Spring Grove Cemetery
March 29, 2007
(#76001440)
 Cincinnati
39°09′53″N 84°31′23″W / 39.164661°N 84.522949°W / 39.164661; -84.522949 (Spring Grove Cemetery)		 Hamilton
62 Stan Hywet Hall
Stan Hywet Hall
December 21, 1981
(#75002058)
 Akron
41°07′02″N 81°32′55″W / 41.117104°N 81.548583°W / 41.117104; -81.548583 (Stan Hywet Hall)		 Summit
63 Sunwatch Site
Sun Watch Village
June 21, 1990
(#75001500)
 Dayton
39°42′48″N 84°13′55″W / 39.71321°N 84.231861°W / 39.71321; -84.231861 (Sunwatch Site)		 Montgomery
64 Alphonso Taft Home (William Howard Taft Home)
Taft Home
January 29, 1964
(#66000612)
 Cincinnati
39°06′03″N 84°30′12″W / 39.100707°N 84.503311°W / 39.100707; -84.503311 (Alphonso Taft Home (William Howard Taft Home))		 Hamilton Birthplace and home until age 25 of U.S. President William Howard Taft
65 John B. Tytus House
John B. Tytus House
May 11, 1976
(#75001335)
 Middletown
39°30′47″N 84°24′30″W / 39.513148°N 84.408301°W / 39.513148; -84.408301 (John B. Tytus House)		 Butler
66 Harriet Taylor Upton House
Harriet Taylor Upton House
October 5, 1992
(#92001884)
 Warren
41°14′22″N 80°49′21″W / 41.239442°N 80.822558°W / 41.239442; -80.822558 (Harriet Taylor Upton House)		 Trumbull
67 Village of Mariemont
Village of Mariemont
March 29, 2007
(#07000431)
 Mariemont
39°08′35″N 84°22′51″W / 39.143056°N 84.380833°W / 39.143056; -84.380833 (Village of Mariemont)		 Hamilton
68 W.P. SNYDER, JR. (Towboat)
W.P. SNYDER, JR. (steamboat)
June 29, 1989
(#70000522)
 Marietta
39°25′06″N 81°27′48″W / 39.418301°N 81.463291°W / 39.418301; -81.463291 (W.P. SNYDER, JR. (Towboat))		 Washington
69 Wright Cycle Company And Wright Printing Shop
Wright Cycle Company
June 21, 1990
(#86000236)
 Dayton
39°45′20″N 84°12′43″W / 39.755525°N 84.212047°W / 39.755525; -84.212047 (Wright Cycle Company And Wright Printing Shop)		 Montgomery
70 Wright Flyer III
The Wright Flyer III in its current museum setting
June 21, 1990
(#90001747)
 Dayton
39°43′33″N 84°12′07″W / 39.725907°N 84.202073°W / 39.725907; -84.202073 (Wright Flyer III)		 Montgomery 1905 Wright Flyer III airplane
71 Colonel Charles Young House
Front and side of the house
May 30, 1974
(#74001506)
 Wilberforce
39°41′16″N 83°53′28″W / 39.687833°N 83.891110°W / 39.687833; -83.891110 (Colonel Charles Young House)		 Greene
72 Zero Gravity Research Facility
NASA photo
October 3, 1985
(#85002801)
 Cleveland
41°24′37″N 81°51′51″W / 41.410245°N 81.8641°W / 41.410245; -81.8641 (Zero Gravity Research Facility)		 Cuyahoga vacuum chamber where drop tests are conducted to simulate low gravity conditions
73 Zoar Historic District
Zoar Hotel, 183 Main Street
October 31, 2016
(#16000859)
 Zoar
40°36′47″N 81°25′18″W / 40.613056°N 81.421667°W / 40.613056; -81.421667 (Zoar Historic District)		 Only permanent home of the Society of Separatists in the United States.[8]

Historic areas of the National Park System in Ohio

National Historic Sites, National Historic Parks, National Memorials, and certain other areas listed in the National Park system are historic landmarks of national importance that are highly protected already, sometimes before the inauguration of the NHL program in 1960, and are then often not also named NHLs per se. There are seven of these in Ohio. The National Park Service lists these seven together with the NHLs in the state.[9]

The James A. Garfield National Historic Site, the William Howard Taft National Historic Site, and the Charles Young Buffalo Soldiers National Monument are also designated as NHLs and are listed above. The remaining four are as follows.

Landmark name
 Image Date established[10] Location County Description
1 Dayton Aviation Heritage National Historical Park October 16, 1992 Dayton, Ohio Includes the Huffman Prairie Flying Field, Wright Cycle Company building, 1905 Wright Flyer III, Paul Laurence Dunbar State Memorial, and Hawthorn Hill NHLs
2 First Ladies National Historic Site October 11, 2000 Canton Stark
3 Hopewell Culture National Historical Park March 2, 1923 Chillicothe Ross
4 Perry's Victory and International Peace Memorial June 2, 1936 Put-in-Bay Ottawa

Former NHLs in Ohio

Landmark name[11] Image Date designated Date withdrawn Locality County Description
1 Hotel Breakers March 9, 1987 August 7, 2001 Sandusky Erie Significantly altered in 1999.
2 Rocket Engine Test Facility October 3, 1985 May 4, 2005 Cleveland Cuyahoga Demolished in 2003.
3 Benjamin F. Wade House December 21, 1965[12] 1968 or 1970[12] Jefferson Ashtabula Home of Civil War-era politician Benjamin F. Wade; demolished c. 1968.[12]

See also

References

  1. ↑ National Park Service. "National Historic Landmarks Program: Questions and Answers". Archived from the original on 2009-06-06. Retrieved 2007-09-21.
  2. ↑ National Park Service (June 2011). "National Historic Landmarks Survey: List of National Historic Landmarks by State" (PDF). Retrieved 2011-07-04..
  3. ↑ Numbers represent an ordering by significant words. Various colorings, defined here, differentiate National Historic Landmarks and historic districts from other NRHP buildings, structures, sites or objects.
  4. ↑ The eight-digit number below each date is the number assigned to each location in the National Register Information System database, which can be viewed by clicking the number.
  5. ↑ "Donald B. (Towboat)". National Historic Landmarks Program. National Park Service. Retrieved 2009-06-05.
  6. ↑ Contact Us, Historic Preservation Society [former owner], n.d. Accessed 2012-06-24.
  7. ↑ http://drbobshome.com/wp/dr-bobs-home/the-museum/history/
  8. ↑ "Secretary Jewell, Director Jarvis Announce 10 New National Historic Landmarks Illustrating America's Diverse History, Culture". Department of the Interior. November 2, 2016. Retrieved 3 November 2016.
  9. ↑ These are listed on p.115 of "National Historic Landmarks Survey: List of National Historic Landmarks by State", November 2007 version.
  10. ↑ Date of listing as National Historic Site or similar designation, from various sources in articles indexed.
  11. ↑ National Park Service (June 2010). "National Historic Landmarks Program: List of National Historic Landmarks by State" (PDF). Retrieved 2010-07-26.
  12. 1 2 3 "Withdrawal of Designation: Benjamin F. Wade House". National Park Service. Retrieved 2015-04-13.
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