My database contains the names of a long list of individuals and their place of residence, and I would like to retrieve the demographic information (gender, race, age, etc.) about the individuals the historical US censuses by the individuals’ place of residence.
I have looked into the APIs of various genealogy websites, but by far I have not found one that allows access to their historic records. For example, ancestry.com has indexed most of the historical US census, but they don’t have a public API.
I wonder whether there is any other way to search individuals in historical records?