Year of Mills 2019

2019 is the Year of Mills for Delaware County. Several organizations have planned mill-related events and displays throughout the year. Keep checking back here and on the events page for more information.

Orange entries are for ongoing displays, Gray entries are for talks and Green is for special events

If your group is planning a display or event, please email

2019 Mill Brochure

Newlin Grist Mill

Here is the brochure of all of these events and displays around the county. Get your paper copy at Newlin Grist Mill or at the events below and don't miss a thing! 

2019 Mill Brochure- 2nd Printing

Newlin Grist Mill

Here is the brochure of all of these events and displays around the county. Get your paper copy at Newlin Grist Mill or at the events below and don't miss a thing! 

"Mills of Delaware County"

Newlin Grist Mill

Daily 9am-4pm

Get a first look at the new exhibit in Newlin Grist Mill's Visitor Center. This temporary exhibit will explore how the many mills in Delaware County shaped its growth and development from the 17th century to the 21st. Free. The Visitor's Center is open year-round from 9 am to 4 pm. 

“Mill Images from the Delaware Valley” 1646 to 1876

Delaware County Historical Society

M, W, F- 10-4

Th and 2nd Sat- 10-6:30

This display features a wide variety of information from the 1994 Mill Study including photographs, newspaper articles, research papers and drawings of mill equipment. There is also an exhibit “A Glimpse of Delaware County’s History” which features maps, artifacts and paintings of all of Delaware County.

"Mills of Newtown Township"

Paper Mill House

Saturdays in July & August 1-4pm

The area around the Paper Mill House along Darby Creek was the 19th century version of an industrial park.  Various mills powered by the water flowing from the creek ground our flour, sawed our wood, and made textiles and paper for export.  And a whole community of workers lived there.  In our local history Museum, we have re-created rooms from their homes, and an 1850 general store at the site, and the upstairs rooms have a variety of items of local history on display.  A special exhibit on area mills is featured in 2019. Outside, explore mill ruins.  Free.

Open hours for the Paper Mill House are June 1 (Newtown Square Day), and Saturdays in July and August from 1-4 pm

"Mills of Haverford Township"

Nitre Hall

Last Sunday of month 10-1

Tuesdays 10-2

Powder Mill Valley along Cobbs Creek was for almost 200 years a center of manufacture. Early grist and saw mills were followed by fulling and dyeing mills. The Nitre Hall Powder Mills, which gave the valley its name, were built by Israel Whelen shortly after 1800. Our young nation had growing needs for explosives and the mills prospered with an output of 800,000 pounds during the war of 1812. Nitre Hall Mills produced a quality and quantity of black powder in the U.S. second only to the Dupont Mills on the Brandywine. After the powder mills closed in 1840, Dennis Kelly bought the property and converted the buildings to the manufacture of textiles.

Nitre Hall, the home of the powder master, is the only building remaining from the industrial era of the valley. A special display on the many mills of Haverford Township will be in the library display cases in addition to the regular displays of powdermaking on the first floor and textiles on the third floor. 

Open hours are June 2 (during Heritage Festival from 11-4), and June 30, July 28, August 25, and September 29 from 10-1. Please note that Karakung Drive is not closed to vehicles this summer unlike other years, apart from June 2.

"Mills of Concord"

Pierce-Willits House

Sept. 7, 4-7pm

Sept. 29, 1-4pm

Oct. 13, 1-4pm

Nov. 19, 1-4pm

Concord Township Historical Society has completed a new exhibit titled "Mills in Concord" which is centered around the 16 mills that they have researched and identified. All are illustrated on an 1848 Concord Map. Don't miss the unveiling at their annual celebration of Concord Community Day which features food, fun, music and more!

$5/ adult donation requested, children free.

"Another Glimpse of Delaware County's History"

Delaware County Historical Society

408 Avenue of the States, Chester, PA

September 25

6-8 pm

DCHS Open House and Annual Meeting. Featuring guest speaker, Beverly Rorer, who will present a brief overview of the Mills of Delaware County. RSVP 610.359.0832 or

"Mills of the Delaware Valley"

Lima Estates

411 N. Middletown Road

September 26

7 pm

by Daniel T. Campbell, AIA, architect and long-time officer of The Society for the Preservation of Old Mills

From the beginning of European settlement the creeks of Chester County (from which Delaware County was created in 1789) were a source of revenue for area residents. In 1699 William Penn partnered with Caleb Pusey and Samuel Carpenter to operate a grist mill along Chester Creek in Upland, only one of the hundreds of grist, saw, fulling and other mills, that lined the banks of our County's waterways flowing into the Delaware River going north from the Brandywine, to Chester, Ridley, Crum, Darby and Cobbs Creeks. Join Dan for the fascinating history of milling in southeastern PA and the process of locating and identifying these mills, whether still existing, re-purposed or in some degree of decay.

Chester Creek Mills Tour

Meet at Concord Township Building

September 28

9:30 am- 3pm

*Tour is FULL*

Guided bus tour along Chester Creek through Upland, Middletown, Aston, Chester Heights and Concord. Bus tour will start out at Concord Township Municipal Building and go through Bethel, Upper and Lower Chichester, Marcus Hook, and Upland to the Pusey Plantation. Tour the Pusey Plantation, then continue the tour along Chester Creek through Middletown and Aston. Stops at the Blue Heron in Aston and Ivy Mills in Concord. End at Newlin Grist Mill where you can see the exhibits, mill, millwright shop and the gift shop! $10 pp. Bring a bag lunch. Checks should be made out to Chichester Historical Society, c/o K. Micka, 151 Nottingham Ct, Aston, PA 19014.

Self-guided Mill tour of Western Delco

Various sites

September 29

1-4 pm

Self-guided trip around various sites in Western Delco. Complete the passport by visiting all the sites and enter for a chance to win a gift basket worth $100!

Sites include:

Delaware County Historical Society- 408 Avenue of the States, Chester, PA 19013

Aston Historical Society- Aston Community Center, 3270 Concord Rd, Aston, PA 19014

Middletown Historical Society- Roosevelt School, 464 Old Middletown Road, Media, PA 19063

Concord Township Historical Society- 659 Smithbridge Rd, Glen Mills, PA 19342

Newlin Grist Mill- 219 S. Cheyney Rd, Glen Mills, PA 19342

Bethel Township Preservation Society- 1092 Bethel Rd, Garnet Valley, PA 19060

To be entered into the gift basket raffle, one must:

Visit ALL sites on the tour; get your ticket punched at each site

Turn in completed ticket at your last stop


Tickets are available for free at each site

You do not need to be present to win, odds are dependent on the number of people entered

Basket will be awarded on October 10, 2019 at 7 pm at the Newlin Grist Mill's "Powering the Mill" event (see below)

Sip Behind the Scenes: "Wine & Waterwheels"

Newlin Grist Mill

October 10

6 pm- 7 pm

For the final event of our 2019 happy hour series, we will be featuring the new waterwheel that Newlin Grist Mill staff and volunteers have been building in the Millwright's Shop. Penn's Wood Winery will provide the libations. Free; must be 21 or older to attend.

The Newlin Series: "Powering the Mill"

Newlin Grist Mill

October 10

7 pm

Newlin Grist Mill Director Tony Shahan and Maintenance Assistant (and Apprentice Millwright) Gabe Christy will give a presentation on the types of power that mills have used throughout history, as well as discussing the process of building a new waterwheel for the site's 1704 Grist Mill as a form of experimental archaeology. $6 members/ $10 non-members.

OcTrolleyFest and "Pennsylvania Mills - The Prequel - Swedish Governor Printz - 1645 on"

Darby Free Library,

Darby Borough

October 12

10:30 am-3 pm

Every year, Darby Borough hosts OcTrolleyFest, a trolley-related festival featuring arts and crafts, transportation and games. This year there will also be a walking tour of mill sites in Darby, organized by the Eastern Delaware County Historic Preservation Partnership (EDCHPP). There is also the possibility of going to Old Swede's Mill at Blue Bell Tavern on the trolley in the afternoon. 

Mills of Chester

Hedgerow Theatre

October 16

6:30 pm

The Chester Historic Preservation Committee presents Dr. Joe Edgett who will do a presentation on the historical significance of Chester's Mills. 

© 2023 by The Book Lover. Proudly created with

This site was designed with the
website builder. Create your website today.
Start Now