The Seashore Trolley Museum was founded in 1939 with one open trolley car, No. 31 from the Biddeford & Saco Railroad Company. Over the years thousands of members have followed the founding fathers by helping the Museum grow to be the premier electric railway museum in the world. Today, our collection contains over 250 transit vehicles, most of them trolleys, from all over the United States, Canada, and many other countries. We are the oldest, and largest electric railway museum in the world.