Peter and Kathryn are buried in a small cemetery a little south of Henderson (York County). The cemetery has had many names as the churches associated with it have changed. It is currently the cemetery for the Faith Evangelical Bible Church (FEBC)in Henderson.
My records show Peter was born December 21, 1887, and died June 5, 1952. Kathryn was born April 09, 1896, and died in June 1983. I have not been able to confirm if the birth dates are based on the Russian calendar, or not. So they may be twelve days off.