They were visiting Conrad W Kass mothers grave.. at St Matthews Cemetery on Bates Street in South St Louis. The reason for the visit was to sign the papers to have the grave moved to another part of the cemetery.
He is standing over the grave.. it had a flat stone and that does not show in the picture.
In the background you can see the homes on Morganford. The street was to be widened and this grave would be re-located. St. Matthews has an office, maybe a trip would be instore to look up this grave site.. To find her first name and date of birth..
More mysteries !