Secrest Octagon Barn

The Secrest Octagon Barn is a historic building located near Downey in rural Johnson County, Iowa, United States. It was constructed in 1883 by master builder George Frank Longerbean for Joshua Hunt Secrest as a hay barn-horse stable.^[2] The octagonal barn measures 80 feet (24 m) in diameter.^[3] It features red vertical siding and a sectional bell shaped roof that is supported by hand-laminated beams. The octagon-shaped cupola has the same roof shape as the barn. It was listed on the National Register of Historic Places in 1974.^[1]

Secrest Octagon Barn
U.S. National Register of Historic Places
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Nearest city	Downey, Iowa
Coordinates	41°36′49″N 91°22′13″W
Area	less than one acre
Built	1883
Built by	George Frank Longerbean
MPS	Iowa Round Barns: The Sixty Year Experiment TR (AD)
NRHP reference No.	74000790[1]
Added to NRHP	November 5, 1974

According to the builder's great grandson, the builder's name is Longerbeam.