Citizens Gas Light Co. of Westchester County, New York - 1886 dated $1,000 Utility Bond

$1,000 6% Gold Bond printed by Corlies Macy & Co., NY. 37 of 40 coupons remain. Some fold tears and paper loss. Two significant developments in the early 19th century—the establishment of the Croton Dam and Aqueduct, and the advent of the railroad—profoundly influenced the expansion of Westchester. The construction of the Croton Dam and Aqueduct commenced in 1837 and was completed in 1842; it is now recognized as a National Historic Landmark and is regarded as one of the remarkable engineering feats of the 19th century. In the 1840s, the initial railroads were constructed in Westchester, including the New York and Harlem Railroad, the Hudson River Railroad, and the New York and New Haven Railroad. The presence of these railroads often dictated the development of towns, resulting in a demographic shift from Northern to Southern Westchester. By the year 1860, the total population of the county reached 99,000, with Yonkers emerging as the most populous city.

The era following the American Civil War provided opportunities for entrepreneurs in the New York region to amass wealth, leading many to establish grand estates, such as Lyndhurst, in Westchester. Throughout the latter part of the 19th century, the region's transportation infrastructure and workforce attracted a manufacturing sector, particularly along the Hudson River and Nepperhan Creek. In 1874, the western section of what is now Bronx County was annexed to New York County, and in 1895, the remaining portion of Bronx County was also incorporated into New York County. These areas would eventually separate from Manhattan to form their own county.