# List of Pennsylvania state historical markers in Westmoreland County

This is a list of the Pennsylvania state historical markers in Westmoreland County.
This is intended to be a complete list of the official state historical markers placed in Westmoreland County, Pennsylvania by the Pennsylvania Historical and Museum Commission (PHMC). The locations of the historical markers, as well as the latitude and longitude coordinates as provided by the PHMC's database, are included below when available. There are 46 historical markers located in Westmoreland County.
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* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)

## Historical markers

| Marker title | Date dedicated | Location | Marker type | Topics |
| Arthur St. Clair | December 10, 1946 | U.S. 30, 6.5 miles NW of Ligonier 40°17′07″N 79°19′15″W﻿ / ﻿40.2854°N 79.3209°W﻿ / 40.2854; -79.3209﻿ (Arthur St. Clair) | Roadside | American Revolution, Government & Politics, Government & Politics 18th Century, Military |
| Arthur St. Clair (1737-1818) | October 28, 1995 | St. Clair Park, N. Main St. near E Otterman St., Greensburg | Roadside | American Revolution, Ethnic & Immigration, Government & Politics, Government & Politics 18th Century, Military |
| Banana Split, The | August 23, 2013 | 805 Ligonier St., Latrobe 40°19′00″N 79°23′07″W﻿ / ﻿40.31666°N 79.38534°W﻿ / 40.31666; -79.38534﻿ (The Banana Split) | Roadside | Entrepreneurs, Invention |
| Brush Creek Salems Church | May 26, 1952 | U.S. 30 near Adamsburg, near Bush Run Markers (Missing) | Roadside | Religion |
| Bullet's Defeat | June 10, 2003 | Old Forbes Road, SR1010 50, Ligonier | Roadside | Forts, French & Indian War, Military |
| Bushy Run | December 10, 1946 | U.S. 30 at Lowry Ave., S end of Jeanette 40°18′39″N 79°37′08″W﻿ / ﻿40.31087°N 79.61892°W﻿ / 40.31087; -79.61892﻿ (Bushy Run) | Roadside | Early Settlement, Forts, French & Indian War, Military, Native American, Transportation |
| Bushy Run | December 10, 1946 | Pa. 66 at Pittsburgh St. (old U.S. 22), Delmont 40°24′51″N 79°34′21″W﻿ / ﻿40.41412°N 79.57252°W﻿ / 40.41412; -79.57252﻿ (Bushy Run) | Roadside | Early Settlement, Forts, French & Indian War, Military, Native American |
| Bushy Run Battlefield | September 14, 1964 | At site, Pa. 993, 1 mile E of Harrison City 40°21′21″N 79°37′32″W﻿ / ﻿40.35577°N 79.6256°W﻿ / 40.35577; -79.6256﻿ (Bushy Run Battlefield) | Roadside | Forts, French & Indian War, Military, Native American |
| Christian B. Anfinsen (1916-1995) | October 1, 1999 | 3rd & Donner Avenues, Monessen | City | Education, Invention, Medicine & Science, Professions & Vocations |
| Colonel Edward Cook | October 29, 1994 | Intersection near Rehoboth Church | Roadside | Early Settlement, Government & Politics, Government & Politics 18th Century, Military, Professions & Vocations, Whiskey Rebellion |
| Dagworthy's Camp | July 17, 1946 | U.S. 30, 8.3 miles E of Greensburg (Missing) | Roadside | Forts, French & Indian War, Medicine & Science, Military |
| Darr Mine Disaster | September 14, 1994 | Olive Branch Cemetery, Pa. 981 between Pa. 51 and Smithton 40°09′16″N 79°45′20″W﻿ / ﻿40.15452°N 79.75562°W﻿ / 40.15452; -79.75562﻿ (Darr Mine Disaster) | Roadside | Business & Industry, Coal, Ethnic & Immigration, Labor |
| Eddie Adams (1933-2004) | May 29, 2016 | Ninth St & Fourth Ave., New Kensington 40°33′54″N 79°45′59″W﻿ / ﻿40.56503°N 79.76649°W﻿ / 40.56503; -79.76649﻿ (Eddie Adams (1933-2004)) | Roadside | Artists, Military Post-Civil War, Professions & Vocations, Publishing & Journalism |
| Fairview Park | August 19, 2017 | Pittsburgh St./Old Wm. Penn Hwy. near Turner Ln., Delmont 40°24′22″N 79°33′06″W﻿ / ﻿40.40614°N 79.55154°W﻿ / 40.40614; -79.55154﻿ (Fairview Park) | Roadside | African American, Religion, Sports & Recreation |
| Fanny Sellins | September 3, 1989 | Front of Union Cemetery, Pa. 366, Arnold 40°34′56″N 79°45′28″W﻿ / ﻿40.5821°N 79.75783°W﻿ / 40.5821; -79.75783﻿ (Fanny Sellins) | Roadside | Labor, Women |
| Forbes Road | July 13, 1960 | U.S. 22, 1.2 miles E of Murrysville (Missing) | Roadside | French & Indian War, George Washington, Military, Roads |
| Forbes Road | November 11, 1967 | Murrysville | Roadside | French & Indian War, George Washington, Military, Roads |
| Forbes Road | n/a | U.S. 22, 1.2 miles E of Murrysville 40°25′23″N 79°39′49″W﻿ / ﻿40.42308°N 79.66362°W﻿ / 40.42308; -79.66362﻿ (Forbes Road) | Roadside | French & Indian War, George Washington, Military, Roads |
| Forbes Road, 1758, Fort Bedford to Fort Duquesne - 12 Mile Run Encampment (PLAQUE) | 1930 | Rt. 30 next to Latrobe Airport runway (?) | Plaque | French & Indian War, Military, Roads |
| Forbes Road, 1758, Fort Bedford to Fort Duquesne - Fort Ligonier (PLAQUE) | 1930 | 301 E Main St., half block from public sq., Ligonier | Plaque | Forts, French & Indian War, Military, Roads |
| Forbes Road, 1758, Fort Bedford to Fort Duquesne - Turtle Creek Defile (PLAQUE) | 1930 | Rt. 22 at Priority Ln., at Post Office, Murrysville | Plaque | French & Indian War, George Washington, Military, Roads |
| Fort Allen | December 10, 1946 | Pa. 136 at SR 3097, Hempfield Twp, SW of Greensburg 40°17′01″N 79°35′33″W﻿ / ﻿40.28348°N 79.5924°W﻿ / 40.28348; -79.5924﻿ (Fort Allen) | Roadside | American Revolution, Early Settlement, Ethnic & Immigration, Forts, Military, Native American |
| Fort Allen - PLAQUE | May 1, 1929 | At church, SR 3097 & St. Johns Church Rd., .5 mile S of PA 136 SW of Greensburg 40°16′45″N 79°35′30″W﻿ / ﻿40.27905°N 79.59163°W﻿ / 40.27905; -79.59163﻿ (Fort Allen - PLAQUE) | Plaque | American Revolution, Forts, Dunmore's War, Military |
| Fort Ligonier | December 10, 1946 | Main & Market Sts., Ligonier 40°14′28″N 79°14′06″W﻿ / ﻿40.24123°N 79.23505°W﻿ / 40.24123; -79.23505﻿ (Fort Ligonier) | Roadside | Forts, French & Indian War, Military, Native American |
| Fred McFeely Rogers (1928-2003) | June 11, 2016 | James H. Rogers Park at Main & Jefferson Sts., Latrobe 40°18′58″N 79°23′08″W﻿ / ﻿40.31601°N 79.38547°W﻿ / 40.31601; -79.38547﻿ (Fred McFeely Rogers) | Roadside | Television, Popular Culture, Celebrity |
| Hannastown | December 6, 1946 | U.S. 119 at SR 1032 (Forbes Rd.) N of Greensburg (Missing) | Roadside | American Revolution, Government & Politics, Government & Politics 18th Century, Native American |
| Henry Clay Frick | December 10, 1946 | Pa. 819 at SR 3089 (old U.S. 119) N end of Scottdale | Roadside | Business & Industry, Coal, Professions & Vocations, Steel |
| Idlewild Park | October 6, 2012 | Rt. 30E, at park exit gate, Ligonier Twp. 40°15′50″N 79°16′47″W﻿ / ﻿40.26378°N 79.27981°W﻿ / 40.26378; -79.27981﻿ (Idlewild Park) | Roadside | Business & Industry, Railroads, Sports & Recreation |
| John W. Geary | August 23, 1951 | S. Diamond St. & Union Alley, Mount Pleasant Veterans Park | Roadside | Civil War, Government & Politics, Government & Politics 19th Century, Governors, Military |
| Johnston House | December 10, 1946 | U.S. 30, 7 miles NW of Ligonier | Roadside | Buildings, Government & Politics, Government & Politics 19th Century, Governors, Houses & Homesteads |
| Loyalhanning | December 10, 1946 | U.S. 30 just SE of Ligonier 40°14′13″N 79°13′50″W﻿ / ﻿40.23707°N 79.23042°W﻿ / 40.23707; -79.23042﻿ (Loyalhanning) | Roadside | Early Settlement, Native American |
| Mammoth Mine Explosion | September 29, 2000 | St. John's Cemetery, along Rt. 819, Scottdale 40°05′35″N 79°36′09″W﻿ / ﻿40.09303°N 79.6024°W﻿ / 40.09303; -79.6024﻿ (Mammoth Mine Explosion) | Roadside | Business & Industry, Labor |
| Morewood Massacre | September 29, 2000 | Rt. 119 overpass on Rt. 981 (Moorewood Rd.), E Huntington Twp. | Roadside | Business & Industry, Labor |
| Murrysville Gas Well | July 13, 1960 | US 22, between Trafford Rd. and Reed Blvd., Murrysville 40°25′37″N 79°41′51″W﻿ / ﻿40.42702°N 79.69762°W﻿ / 40.42702; -79.69762﻿ (Murrysville Gas Well) | Roadside | Business & Industry, Oil & Gas |
| Norvelt | September 8, 2002 | Mt. Pleasant Road (LR 6406), on V.F.D. property, Norvelt 40°12′34″N 79°29′51″W﻿ / ﻿40.20942°N 79.4974°W﻿ / 40.20942; -79.4974﻿ (Norvelt) | Roadside | Business & Industry, Government & Politics, Government & Politics 20th Century, Labor |
| Rural Free Delivery | June 26, 2001 | 135 West Pennsylvania Ave., New Stanton 40°12′58″N 79°36′36″W﻿ / ﻿40.216°N 79.6099°W﻿ / 40.216; -79.6099﻿ (Rural Free Delivery) | Roadside | Government & Politics 19th Century, Government & Politics 20th Century, Transportation |
| Sisters of Charity of Seton Hill | Aug 28, 2021 | At entrance to Seton Hill University 40°18′18″N 79°33′06″W﻿ / ﻿40.304884°N 79.551726°W﻿ / 40.304884; -79.551726 | Roadside | Religion, Women |
| Saint Vincent | December 10, 1946 (missing) September 10, 2014 | At College entrance on Fraser Purchase Rd. 40°17′34″N 79°24′03″W﻿ / ﻿40.2927°N 79.4009°W﻿ / 40.2927; -79.4009 | Roadside | Education, Religion |
| St. Xavier's | December 10, 1946 | US 30 at St. Xavier's Rd., 6 miles E of Greensburg at Academy 40°16′57″N 79°24′59″W﻿ / ﻿40.28263°N 79.41637°W﻿ / 40.28263; -79.41637﻿ (St. Xavier's) | Roadside | Education, Ethnic & Immigration, Religion, Women |
| Standard Shaft Mine & Coke Works | April 14, 2007 | Along State St. (SR 2007), Mt. Pleasant Twp. | Roadside | Business & Industry, Coal, Ethnic & Immigration |
| Stephanie Kwolek (1923-2014) | October 1, 2016 | 734 7th St., New Kensington 40°33′45″N 79°45′42″W﻿ / ﻿40.56256°N 79.76159°W﻿ / 40.56256; -79.76159﻿ (Stephanie Kwolek) | Roadside | Science & Medicine, Military, Police and Safety, Professions & Vocations, Women |
| Toll House | May 28, 1955 | E. Pittsburgh St., east of Stark St., Greensburg 40°18′10″N 78°28′11″W﻿ / ﻿40.3028°N 78.4696°W﻿ / 40.3028; -78.4696﻿ (Toll House) | City | Roads, Transportation |
| Toll House | May 28, 1955 | Mount Odin Park, Tollgate Hill Rd. (Bus. Rt. 30), Greensburg 40°18′22″N 78°25′50″W﻿ / ﻿40.3062°N 78.4306°W﻿ / 40.3062; -78.4306﻿ (Toll House) | City | Roads, Transportation |
| Twelve Mile Camp | December 10, 1946 | Junction U.S. 30 & Pa. 981, 7.1 miles E of Greensburg | Roadside | French & Indian War, George Washington, Military |
| Vandergrift | May 17, 1990 | Municipal Bldg. E lawn, Washington Ave. Near Custer Ave. (Rt. 56), Vandergrift 40°36′15″N 79°33′53″W﻿ / ﻿40.60407°N 79.56483°W﻿ / 40.60407; -79.56483﻿ (Vandergrift) | City | Business & Industry, Cities & Towns |
| West Newton | December 10, 1946 | W Main St. (PA 136) at Youghiogheny River bridge, West Newton 40°12′41″N 79°46′13″W﻿ / ﻿40.21138°N 79.77033°W﻿ / 40.21138; -79.77033﻿ (West Newton) | Roadside | Government & Politics, Government & Politics 18th Century |
| Westmoreland County | November 25, 1981 | NE corner, Courthouse Square, Main & Otterman Sts., Greensburg 40°18′11″N 78°27′20″W﻿ / ﻿40.303°N 78.4555°W﻿ / 40.303; -78.4555﻿ (Westmoreland County) | City | Government & Politics, Government & Politics 18th Century |
| William Findley | October 28, 1994 | Route 981 near Route 30, Latrobe | Roadside | Government & Politics, Government & Politics 18th Century, Whiskey Rebellion |
| Willie Thrower (1930-2002) | October 24, 2003 | Valley High School, 703 Stevenson Blvd., New Kensington 40°33′56″N 79°45′18″W﻿ / ﻿40.5656°N 79.75495°W﻿ / 40.5656; -79.75495﻿ (Willie Thrower) | Roadside | African American, Football, Sports |