The “old” Brownsville Post Office was built as part of the New Deal effort following the Great Depression.  The Tennessean (Nashville) newspaper described the event (April 3, 1936; page 18)

New Postoffice Opened
Brownsville, Tenn., April 2. —(Spl)— The Brownsville postoffice moved into the new $55,000 ederal [sic] building here today. The structure was completed early this week. The new building is located on Washington street, just off the public square. Construction began last fall.

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