Hill Grove, OhioHill Grove is an unincorporated community in Darke County, in the U.S. state of Ohio.[1] HistoryHill Grove was laid out in 1848.[2] A post office called Hill Grove was established in 1837, and remained in operation until 1917.[3] Being close to Union City limited the community's early growth.[4] Notable personHarvey C. Garber, U.S. Representative from Ohio References
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