This stated his "funeral procession was the largest to present day that the city ever saw."
The article states Shelby was a hemp farmer from Waverly, MO. He had raised his first cavalry unit during the 1850's KS/MO Border Wars.
This site was from the bios on: http://www.wherethecivilwarbegan.com/bios.cfm
I simply typed "J.O. Shelby funeral in Kansas City" and found lots of interesting information.
It also stated he and U.S. Grant were the 2 military geniuses from MO, both were born elsewhere, but lived more of their lives in MO than anywhere else.