plato designed and built a variety of structures in buildings alabama, indiana, kentucky, maryland, new york, ohio, pennsylvania, west virginia, and washington d.c. he is reportedly the first african american to design a u.s. post office and is credited with receiving contracts to build at least thirty-eight post offices across the united states. his work also included "greek revival and craftsman-style houses" and "elegant mansions," as well as "banks, churches, schools, office buildings, theaters," and "federal government housing projects." at least eight of his projects are listed on the national register of historic places. these include the broadway temple a.m.e. zion church and the virginia avenue colored school in louisville, kentucky; the j. woodrow wilson house at marion, indiana; and the second baptist church in bloomington, indiana, among others.