Letter from Peter Ruffner in Switzerland to Caleb and Doris Ruffner. He discusses his health, and his efforts to find Peter Ruffner including trying to trace the Strickler line, but that he has not been able to find any information on him.
Ruffner, Caleb, "Letter to Mr. and Mrs. Caleb Ruffner from Peter Ruffner - April 21, 1976" (1976). Ruffner Family History Records. 29.