The architecture of this shotgun-style structure suggests it may have served as a neighborhood grocery/general store. According to David Clinard, via Elizabeth Chancellor, it was. Mr. Clinard writes: Charles Douglas Hudson was a previous owner of that corner which included that little structure and the house to the left. The 1935 city directory included Charles Douglas Hudson as a retail grocer on Clinton Road near Upper River Road. So it does appear to have been used as a community grocery store at least during that period.

[I am identifying it as Hudson Grocery by association; it is possible it had another name].