There are two locations for Chesed Shel Emeth. The old one in University City (on Olive St Rd), and a newer one out in Chesterfield.
Most of the old cemetery has been photographed.
The executive director is Anita Feigenbaum and she is responsive via email.. but keep in mind with current conditions most offices are closed or limited.
The website has addresses and additional information
https://chesedshelemeth.org/

Renée K. Carl
Washington DC
St Louis surnames: CARL, LERNER, BRAND, SANOFSKY, POLINSKY, KETCHER