Please
The Trolley Museum in Scranton is not run by Steamtown or the Park Service, it’s called the Electric City Trolley Museum and is on the opposite end of the parking lot from the Steamtown NHS
http://www.ectma.org/museum.html
The schedule is about half way down the page. Ask at the ticket booth to see if there’s a combination ticket for both them and Steamtown if you’re planning to see them both while you’re there.
The last time I was there, there was no combination price, since they are two different companies.
Steamtown is well worth a go too. Last year they started a new program. for $50.00 extra, one could ride in the cab or the Mikado with the fireman and engineer!!! It’s short little ride, but nice. Supposedly this year they were gonna continue that. There are only 4 single slots each day they offer that program, first come first servered. Get there early!