I'm old enough to remember this event but I don't. I was 14 years old, and I was less than 90 miles away from Sedalia in 1974. I had just moved back to Butler, MO from Albuquerque, New Mexico so I'm guessing I was getting acclimated to my surroundings in my hometown...
I was in grade school when I first visited Harry S. Truman's birthplace in Lamar, MO. I have been back to it another time in my adult life. If you're looking for an interesting location for a daytrip some upcoming weekned, check this out.