He studied for the priesthood at St. Miki College before being ordained in 1943 by Bishop Johannes Ross of the Hiroshima diocese.
Schiffer was one of several Jesuit priests who were at their mission compound, less than 1 mile (1.6 km) from ground zero when the explosion occurred.
"[6] According to the 1946 account of Jesuit priest Father John Siemes, who had been on the outskirts of the city: They were in their rooms at the Parish House—it was a quarter after eight, exactly the time when we had heard the explosion in Nagatsuke—when came the intense light and immediately thereafter the sound of breaking windows, walls and furniture.
Father Schiffer was buried beneath a portion of a wall and suffered a severe head injury.
The Father Superior received most of the splinters in his back and lower extremity from which he bled copiously.
An invisible force lifted me from the chair, hurled me through the air, shook me, battered me, whirled me 'round and 'round like a leaf in a gust of autumn wind.
The two also appeared together at Fordham University in 1957, on the twelfth anniversary of the bombing, with Schiffer noting that they had become "very fast friends.
[16] In the 1960s, Schiffer worked as an associate professor of economics at St. Joseph's College in Philadelphia,[17][18] and wrote a book on the Japanese banking system.