Not all Petris are buried there some are buried at Capitol Memorial Park in Austin off of mopac the blog on there might have some stuff wrong not sure yet. Still researching some of it. Have you joined the Daughters of the Republic of Texas. Karen Thompson our cousin is President right now. I'm putting my application in this week. Also I think I found Clara Massler birth certificate in Germany with both patents listed. You can call me at 630 - 4872. To much to type.