Nowlin is an unincorporated community in Haakon County, in the U.S. state of South Dakota.
[1] A post office called Nowlin was established in 1890, and remained in operation until it was discontinued in 1963.
[2] The community was named for Henry J. Nowlan, of the U.S. Army (a recording error accounts for the error in spelling, which was never corrected).
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