Northwest Presbyterian Church

I am trying to locate my three cousins whose father, I just found out, William "Bill" Roy Johnson passed away in July of 2021. He and my aunt, the late Edwena J. Johnson attended Northwest Presbyterian. Is there any information you may have that would allow me to contact their children? We have lost touch through the years and I would very much like to reconnect with them. I live in Richmond, VA and would be glad to speak with you if necessary.