 It was not long, however, before he entered the engineering service of the Erie Railroad, then under construction, his headquarters being at Dunkirk, New York at the extreme western end of the road.Mr James P. Kirkwood and Mr James H. Morley with whom Captain Flad was afterwards associated, were also employed at this time on the same road.After the completion of the New York and Erie Railroad in 1851, we hear of Captain Flad, first as located for a time at Tonawanda between Niagara Falls and Buffalo, and then, in 1852, as an assistant engineer in the construction of the Ohio and Mississippi Railroad from Cincinnati to St. Louis, his headquarters being at Vincennes, Indiana.