Public Programs  > Pennsylvania Historical Marker Program > Calendar of Dedication Events
Calendar of Dedication Events
NFL Films dedication ceremony
Photo Courtesy of NFL Films - Cara R. Angelucci

Since 1946, Pennsylvanians have gathered to unveil, dedicate, and celebrate the installation of new historical markers. Virtually all of these ceremonies are public events, and you're invited to attend those held near where you live or whose subject matter interests you.

Visit this page often, as new events will be listed as soon as they are confirmed. Information is subject to change.  Please E-mail or phone (717) 705-4266 for information on the Historical Marker Program.

Pennsylvania Historical Marker Dedication Information
July 19
11:00 AM

Byberry Hall

Built by African American abolitionist Robert Purvis to serve as a meeting place and arena for discussion of anti-slavery topics. Many black and white abolitionist leaders of the time spoke here and urged support of the UGRR, protest of fugitive slave laws, and other related activism.

3003 Byberry Rd., Philadelphia

Local Sponsor:   Byberry Monthly Mtg. of Friends

July 26
11:00 AM

Bryden Horse Shoe Works

In the late 18th and early 19th centuries, this plant supplied a vital product of this era and was one of the largest of its kind in the world. The business employed a patented technique that improved durability. Supplying horse shoes to the British government during the Boer War and afterward, it enjoyed a reputation for quality and received orders from all over the world.

800 Front St., Catasauqua

Local Sponsor:  

July 31
5:30 PM

Old St. Joseph's Roman Catholic Church

The earliest permanent Catholic parish in PA, it was founded by English and German Jesuits in 1733. The first Catholic churches in NJ and DE had OSJ as their "mother church." OSJ missionaries helped found parishes in frontier regions of PA.

321 Willings Alley, Philadelphia

Local Sponsor:   Old St. Joseph's Roman Catholic Church

Postponed - TBD

Sheppton Mine Disaster and Rescue

Rescue efforts as a result of a 1963 mine cave-in utilized, for the first time, a borehole technique that has become ubiquitous worldwide for similar mine disasters. The same technique was used at Quecreek and Chile in recent decades. The event prompted revisions to state mining regulations and to the federal Coal Mine Safety Act.

Rt. 924 & Schoolhouse Rd., Sheppton

Local Sponsor:   Sheppton Mine Disaster Cmte.

August 28
11:00 AM

Ross Leffler School of Conservation

It is the site of the PA Game Commission's original training center for Game Protectors and Wildlife Conservation Officers. Claimed to be the first in the nation, this facility was established in 1931, and became a model for other states.

Game School Rd. & Empire Ridge Rd., Brockway

Local Sponsor:   PA Game Commission

September 13
1:00 PM

Battle of the Clouds

A skirmish took place at the site of the White Horse Tavern shortly after the American defeat at the Battle of Brandywine. A deluge of rain prevented a true battle which may have had dire consequences for the Continental Army. About to be outflanked by British and Hessian forces, the sudden storm enabled the Americans to retreat and resupply their rain-soaked ammunition and prevented the British from crossing the flooded Schuylkill River to move on Philadelphia. Another defeat on the heels of Brandywine could have turned the tide of the war.

606 Swedesford Rd., Frazer

Local Sponsor:   East Whiteland Twp. Historical Commission

September 14
10:00 AM

Mathew Carey

Born in Ireland, he became a prominent American publisher in the early years of the industry. He became politically active, was a strong advocate for advancing American Naval power, and had influence on the establishment of the Whig Party. Considered one of the initiators of the nationalist school of American economic thought, he was concerned with infrastructure and the political economy.

Market St., near 4th, Philadelphia

Local Sponsor:   Ancient Order of Hibernians of America, Inc.

September 18
4:00 PM

Bethlehem Steel Plant

The flagship mill of one of the largest steel producers in the US. It produced rails for the PA railroad industry, ships and parts for the US Military. Early experiments with high speed steel were undertaken here, revolutionizing the machining industries. Steel manufactured here also had great impact on bridge building and building construction. It was one of the largest and most diverse defense manufacturers during and after WWII. After over 100 years in operation, it closed in 1995.

E 3rd & Filmore Sts., Bethlehem

Local Sponsor:   South Bethlehem Historical Society

September 28

The Atkinson Family

This Quaker abolitionist family was active in the Underground Railroad. They harbored many fugitive slaves in their barn and attic. Son Wilmer founded the Farm Journal magazine in 1877. The publication attained national distribution and remains an influential resource for American farmers and ranchers today.

1506 Fort Washington Ave., Maple Glen

Local Sponsor:   Upper Dublin Monthly Meeting

October 9
10:30 AM

John J. McDermott

At age 19, became the first American and youngest competitor to win the U.S. Open of golf in 1911, and repeated in 1912. Traditionally a British game, McDermott's wins helped to popularize the sport in the US. In the years following, the PGA was established, two additional golf majors emerged in the US, and American golfers dominated the US Open and achieved prominence in the world of golf.

Kinsessing Library, 1201 S 51st St., Philadelphia

Local Sponsor:   N/A

October 18
3:00 PM

Humphry Marshall

Considered the Father of American Dendrology, Marshall wrote the first and definitive book on American trees and shrubs in 1785. The book was widely cited in Europe. He also cultivated many American species and he exported them to European gardens, including that of Louis XVI of France and King George of England.

1407 W Strasburg Rd. (PA 162), West Chester

Local Sponsor:   Marshallton Conservation Trust