According to an article in the September 5, 1908 edition of the Plymouth Reporter: 

"Monday was a gala day for this village, as the arrival of the first interurban car was witnessed between 1 and 2 p.m. It carried about 150 merchants from Port Washington including Zimmerman's band from that place. They then paraded the streets and afterwards to the village hall, where they were addressed by our village president, A. Stokdyk Sr., which was followed by an address by Mayor Bolens of Port Washington. F.W. Walker, president of the Milwaukee Northern, then thanked the citizens for their help and also spoke on the benefits this will mean for the people. Judge Bolens of Port Washington also gave a brief address, which was followed by J. Jungers of this place. On the way about $150.00 was collected from the "Port" people, which was spent in the village, making a happy day to all, at least some were exceedingly happy. They left for their respective homes about 4 o'clock. Regular services were begun the following day. Cars however only run every 2 hours for a few weeks, on account of the gravel cars taking their road."