Stoltzfus joined the Foreign Service in 1949. His first post was in
Alexandria,
Egypt, where he worked as an economic officer and reported on the production of flax and other natural resources. After doing economic reporting in
Benghazi,
Libya, Stoltzfus was assigned to Kuwait, where he did consular work with
Palestinian refugees applying for visas to the United States. He then did political reporting in
Jidda,
Damascus, and
Aden before being assigned as Ambassador to
Oman,
Qatar, and
Bahrain in 1972. In 1974, he would return to Kuwait, his first posting, as the new ambassador. In 1976 Stoltzfus retired from the foreign service and went into banking. ==Service chronology==