The 1890 US census was almost destroyed by fire. Here's what happened and what 1890 census substitute records are available.
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Genealogy Q&A: Researching Census Records
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What Happened to the 1890 US Census Records?
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1890 census… Aargh! – Barnard McCleary – Genealogical Collection
Us census of 1890 hi-res stock photography and images - Alamy