From the 1882 Iowa State Gazeteer and Business Directory:

BLUE GRASS. Situated in the southern part of Scott County, 10 miles from Davenport (c h), its banking city, and 6 from Buffalo, its most convenient shipping point, on the Muscatine div C. R. I. & P Ry. Population 70. A tri-weekly mail stage runs to Muscatine. Joseph Gadd, postmaster.

Campbell S R, hotel propr.
Gadd B T, physician.
Gadd Joseph, Books and Stationery.
Greenwalt John, flour mill.
Haskell Rev-(Presbyterian).
Jost Frederick, wagonmaker.
Karges Henry, general store.
Klatt A, blacksmith.
Langbehn Henry, shoemaker.
Meecke C, blacksmith.
Meyhoe Herman, hotel and saloon.
Miller -,hotel and saloon.
Oelchers Wm, shoemaker.
Porter J R, physician.
Pruss E, carpenter.
Speer D B, nursery.
Tull Rev H V (Methodist Episcopal)