Address: 123 W. Diamond St., Butler, PA 16001

Phone: 724-283-8116

Website: www.butlerhistory.com

Email: society@butlerhistory.com

Operates: 11 a.m. to 3 p.m. Wednesdays, Thursdays, and Fridays

Sites: Sen. Walter Lowrie House, 123 W. Diamond St., Butler

Little Red School House, 200 E. Jefferson St., Butler

Cooper Cabin, 199 Cooper Road, Cabot

Mailing address: P.O. Box 1931, Cranberry Township, PA 16066

Phone: 724-720-6465

Website: explorecranberry.org

Email: info@explorecranberry.org

Sites: Sample School, a restored one-room schoolhouse at 2525 Rochester Road, open by appointment only.

Address: 204B Suite 1 S. Jackson St., Evans City, PA 16033

Phone: 724-538-3629

Email: evanscityhistory@gmail.com

Sites: The museum is open from 9 a.m. to noon every Tuesday from April through November. Also by appointment on request.

Address: Hampton Township Community Center, 1301 McCully Road, Allison Park

Phone: 412-760-9476 (club president)

Website: gpcwrt.org

Email: rfellers115@icloud.com

Meeting: Meetings are every third Monday at 7 p.m. Meetings are free and open to the public, each featuring a speaker.

Address: 218 Mercer St., Harmony, PA 16037

Phone: 724-452-7341

Website: harmonymuseum.org

Email: hmuseum@zoominternet.net

Sites: The nine-property Harmony Museum in and near Harmony’s National Historic Landmark District. Tour times are 1 p.m. and 2:30 p.m. Tuesdays through Saturdays.

Address: 497 Perry Highway, Harmony, PA 16037

Phone: 724-822-4823

Website: Lancaster Historical Center Butler County PA on Facebook

Email: lancasterhistory@yahoo.com

Sites: The center is open from 1 to 3 p.m. Tuesdays and Thursdays or by appointment.

Address: 1 Brickyard Road, Mars, PA 16046

Phone: 724-272-9588

Website: www.marshistory.org

Email: marshistory@gmail.com

Contact: John Watson, president

Meetings: 7:30 p.m. on the third Wednesday of each month in the Library Room of the Main Building. The public is welcome.

Sites: The station and museum are open from 10 a.m. to 2 p.m. Fridays or by appointment.

Address: 2865 William Flinn Highway (Route 8), Slippery Rock, PA 16057

Phone: 724-794-6011

Sites: Not offering tours at this time. Newly transferred to Jennings Environmental Center

Mailing address: P.O. Box 586, Prospect, PA 16052-0586

Phone: 724-865-2181

Email: jmharm@zoominternet.net

Meetings: 5:30 p.m. the third Monday of every month

Address: 147 N. Rebecca St., Saxonburg, PA 16056

Telephone: 724-352-1400, ext. 3

Website: www.saxonburgpa.com/saxonburg-museum

Email: Friendsofthesaxonburgmuseum@gmail.com

Facebook: Saxonburg Museum

Sites: Tours by appointment.

Mailing address: P.O. Box 511, Slippery Rock, PA 16057

Phone: 724-679-3628

Website: www.slipperyrockheritage.org

Email: suebarkley47@aol.com

Meetings: Third Monday of every month; call for location.

Address: 310 E. Grandview Ave., Zelienople, PA 16063

Telephone: 866-856-8444

Website: www.washingtonstrail.org

Contact: Experience Butler County

Sites: Download a map and/or brochure for a driving tour.

Address: 243 S. Main St., Zelienople, PA 16063

Telephone: 724-452-9457

Website: www.zeliehistory.org

Email: zeliehistory@zoominternet.net

Facebook: Zelienople Historical Society

Office hours: 9 a.m. to noon weekdays

Sites: Passavant House, 243 S. Main St., Zelienople and Buhl House, 221 S. Main St., Zelienople, has tours available by appointment.