Yes we are related. I met with your mom this past summer at my aunt Judy Petri Johnson (cousin to your Mom) home to look at old family picture and make copies to share. It was fun.
I have been working on my family tree for about 8 years. The Petri's I've come to a brick wall. I'm having problems trying to find information on Charles Hubert Petri Sr. family the one that came from Germany.
I did find a great find at the Austin History Center. Your mom had this old family photo of Clara Mossler Petri with her first 3 children, it was a little faded and worn. Well I was look at some of the unidentified photo's on this Austin History Center web site. IT WAS THERE. Identifier J125.http://www.austinlibrary.com/jones/jonesglass.cfm
just type j125 in the search window
Have you been able to find the parent of Charles Hubert Petri Sr. and his wife Clara Mossler?