United States. Bureau of Foreign and Domestic Commerce and United States. Bureau of the Census. "1880, Third Number," Statistical Abstract of the United States (1880). https://fraser.stlouisfed.org/title/66/item/22009, accessed on May 19, 2024.
United States. Bureau of Foreign and Domestic Commerce and United States. Bureau of the Census. "1880, Third Number," Statistical Abstract of the United States (1880). https://fraser.stlouisfed.org/title/66/item/22009, accessed on May 19, 2024.