I found this interesting.
Atlas of the Historical Geography of the United States
https://dsl.richmond.edu/historicalatlas/
For those interested in "immigrants"... Some thoughts with regard to the earlier inhabitants of what is now the United States as the early immigrants pushed them out under the mantle of Manifest Destiny.
https://dsl.richmond.edu/historicalatlas/34/a/
https://dsl.richmond.edu/historicalatlas/34/b/
https://dsl.richmond.edu/historicalatlas/34/c/
https://dsl.richmond.edu/historicalatlas/34/d/
Atlas of the Historical Geography of the United States
https://dsl.richmond.edu/historicalatlas/
For those interested in "immigrants"... Some thoughts with regard to the earlier inhabitants of what is now the United States as the early immigrants pushed them out under the mantle of Manifest Destiny.
https://dsl.richmond.edu/historicalatlas/34/a/
https://dsl.richmond.edu/historicalatlas/34/b/
https://dsl.richmond.edu/historicalatlas/34/c/
https://dsl.richmond.edu/historicalatlas/34/d/