Dewey lived in an Iowa library for 19 years and received his own mail. He was not the first. Libraries have kept cats on the payroll since the 1800s, originally for what mice do to paper.
Library Cats: The Long Tradition of Felines on the Public Payroll
Library cats have been on the public payroll since 1868, from British Post Office mousers at a shilling a week to Dewey of Spencer, Iowa. The real history.
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