 Perhaps the largest and most prominent customer of the line was the Atlas Tack Company, which had a total of three sidings that ran up to the North side of the building (two trailing and one facing).From here, tacks, nails and other products made at the factory were shipped out by rail, and materials used in the making of these products such as paints & other chemicals were brought in to the factory until 1953.Perhaps the second largest customer of the line was the Fairhaven Iron Works, which had a foundry on the corner of Union and Laurel Streets, in Fairhaven Center, near Atlas Tack.