Suhr studied philosophy and theology in Luxembourg and Rome, was ordained on 1 April 1933 and was appointed prior of the newly established abbey of San Girolamo in Rome in 1935.
Suhr studerede filosofi og teologi i Luxembourg og Rom, blev præsteviet 1. april 1933 og udnævnt til prior for det nyoprettede abbedi San Girolamo i Rom 1935.