The one-story building now known as the Kenney Gym Annex, the easternmost of the two structures, was built in 1889-90 as the Military Drill Hall and was designed by Nathan Clifford Ricker.
The Kenney Gym, the two-story building to the west, was built in 1902 and was designed by Nelson Strong Spencer[REF] in the Renaissance Revival style,[REF] strongly influenced by Ricker's design for the drill hall [REF].