Minnehaha County Historical Society (MCHS) historical markers placed in McKennan Park:
- Col. Melvin Grigsby.
- Pillars of the Nation.
- A Park Born in Controversy - McKennan Park Zoo.
- Sioux Falls Municipal Band.
- Lady Liberty (2003).
- Boulevard Street - historic street name signage.
- McKennan Park Historic District - boundary signage.
Historical markers placed by others in McKennan Park:
- Band Shell Cornerstone (1926- unknown sponsor)
- World War I Memorial (1922 - Sioux Falls Garden Club)
- Statue of Liberty (1943 - Garden Club)