It just crossed my mind, I have the death certificates for my family members, buried in Washington Park, and on some death certificates there's information as to where they are buried, according to what year it happened. The company who ran that cemetery as you know, kept no real records. My paternal grandmother was relocated to another cemetery when the airport bought certain areas. The granddaughter found a certificate in family papers where all information was given as to where and location at the new site remains were re interred. There is a company on West Florissant across from Calvary Cemetery, in St Louis, that may know some information. I don't know the name at this writing, but it's right next to the gas station. They knew where my grgrandma was buried at Calvary and may be able to tell you about other names you are looking for. Good Luck!