United States. Bureau of the Census. "Vital Statistics, Plates XXXVII-XLVI" in Statistical Atlas of the United States : Based on the Results of the Ninth Census 1870 (). https://fraser.stlouisfed.org/title/64/item/574140, accessed on April 19, 2024.
United States. Bureau of the Census. "Vital Statistics, Plates XXXVII-XLVI" in Statistical Atlas of the United States : Based on the Results of the Ninth Census 1870 (). https://fraser.stlouisfed.org/title/64/item/574140, accessed on April 19, 2024.