From: Newark Street Guide 1872

The Market Street Line runs from the Market Street Depot in the centre of the city, throughout almost the entire breadth, eastward to the foot of Market Street and westward to Roseville. Its cars are red with red signal lights. They make about 60 trips, at intervals of fifteen minutes, from 5:42 AM to 10:42 PM by way of Market Street, Springfield Avenue, South Orange Avenue, Boston, Bank and Warren Streets to Roseville. The depot being situated about midway on the route; the early cars as they leave, run alternately east and west, returning at night to the stables in the same way. On the route eastward, they pass the New Jersey Railroad, the Gas Works and the Ferry Street and East Ferry Street Depots of the Newark and New York Railroad. Westward, the Library Building, the Opera House, the Court House and the German Hospital.