The Pacific Improvement Company is still in existence. After the construction work for which it was incorporated was completed, Mr. Huntington sold his stock to the Hopkins estate. This gave to the Hopkins interest, then represented by Mr. Searles, possession of 50 per cent of the stock of the Pacific Improvement Company. The other 50 per cent remained in the hands of the Stanford and Crocker interests. At a later date the Searles stock passed to the University of California. The Pacific Improvement Company is now in process of liquidation. It owns some thirty town sites, a considerable amount of real estate, including much unimproved property in the Potrero district of San Francisco, land in the Monterey peninsula, and other property in Buffalo, New York. It has, besides, the stock and bonds of certain railroad companies, stock of the Carbondale Coal Company of Washington, and of the Oakland Water Front Company of Oakland, California, and what is still more important, it holds a large number of bills receivable covering property of all sorts which it has sold in recent years but which has not been entirely paid for. The Pacific Improvement Company’s construction outfit was sold to the Central Pacific in 1883. The last of the construction companies, the Southern Development Company, became responsible for construction east of the Arizona state line when the Pacific Improvement Company left the field. It was of minor importance and may be dismissed with a word. In respect to ownership and operation it resembled the Contract and Finance Company, the Western Development Company, and the Pacific Improvement Company. Identical Control of Companies There is a great deal of history about the operation of the various construction companies mentioned, that has not been, and perhaps never will be, written. The men out on the road seem to have known little about any of them. The contact of these men was with Stanford, Huntingdon, Hopkins, and Crocker. They neither knew nor cared whether they received orders from the associates in their capacities as directors of the Central Pacific or of the Southern Pacific, or as stockholders in one of the construction companies. Nor was it easy for them to keep informed. The same construction force moved from place to place. The same man in the same pay-car paid off employees of the Central Pacific, the Southern Pacific, and the construction companies indiscriminately.[183] The same general shops furnished track materials.[184] The same equipment was found on all the different lines, except perhaps on the northern division. There was small wonder that even the higher engineering officials were unable to locate accurately the stretches built for each of the principal companies which they served, nor that men under them should have been altogether confused.