Also just about the only artist from St. Louis of any significance to pop up between Chuck Berry & Nelly.
Interesting observation! The only others I can think of are Smith (their 1969 #5 cover of "Baby It's You") and their lead singer Gayle McCormick (who had a minor charter in 1971 called "It's a Crying Shame").
Bloodstone ("Natural High") were from K.C., right?
Bloodstone, yes. I'd never heard of Smith, but Whitburn has them as an L.A. act. McCormick doesn't have a solo entry in the Top 40.
There was a group called Pavlov's Dog that my friends & I liked & had their album, contemporaneous with Head East, but they never broke nationally.
Given how important St. Louis was in the pre-R'n'R era (From Scott Joplin to W.C. Handy, etc.) it's really amazing that just nothing happened for 40 years. I mean Pittsburgh is a music mecca by comparison.