Railroad tracks gridiron the yards and nineteen locomotives are required for the transportation of material. The repair shops cut an important figure and an army of blacksmiths, roll-turners, carpenters, tinners and other mechanics is employed to keep every detail of the working equipment in perfect order. The plant is lighted throughout with electricity. Within easy reach of the mills are the offices of the mill superintendent and his corps of clerks, draughtsmen and engineers. Eight handsome residences, farther back from the yard, are occupied by the assistant managers. There is also a club house for the use of guests and officers. The foundation of this immense concern, representing a capital of many millions of dollars, and employing nearly 4,000 men, was laid in 1880, when, according to the census report, Homestead had a population of less than 600. The firm which has made all this possible, which, by virtue of intelligent effort and phenomenal accumulation and utilization of capital has called into being a full-fledged American town, with schools, churches, prosperous mercantile establishments, independent minor industries and a well-organized municipal government, is controlled by two men, whose names have, through the events to be recorded in this volume, been made familiar as household words the world over--Andrew Carnegie and Henry Clay Frick. Andrew Carnegie is a self-made man, the son of a poor weaver of Dunfermline, Scotland. In 1845, the lad, then 12 years old, emigrated to the United States with his parents and settled in Pittsburgh. He was put to work tending a small stationary engine, and afterwards became a telegraph messenger boy and, in course of time, an operator. The Pennsylvania Railroad Company made him clerk to the superintendent of its Pittsburgh office and manager of its telegraph lines. About this time he met Woodruff, the inventor of the sleeping-car, and took a share in his venture. The enterprise was profitable and yielded what may be considered the nucleus of Mr. Carnegie's wealth. Again the young man was promoted, securing the superintendency of the Pittsburgh division of the Pennsylvania road. His future was now assured if he chose to continue in the railroad business; but his tastes, or rather his keen foresight led him in another direction. In company with his brother Thomas and others he purchased an established rolling mill, and from this grew the most extensive and profitable system of iron and steel industries in the world.