Letter from Peter Ruffner in Switzerland to Caleb and Doris Ruffner. He ask them if they have any information about Frederick Ruffner, and how he had a Mr. Schelbert look for correspondence from Peter Ruffner.
Ruffner, Caleb, "Letter to Mr. and Mrs. Caleb Ruffner from Peter Ruffner - January 07, 1980" (1980). Ruffner Family History Records. 30.