He was District Attorney of Delaware County, Pennsylvania from 1944 to 1952.
[1] Kraft received a recess appointment from President Dwight D. Eisenhower on August 12, 1955, to the United States District Court for the Eastern District of Pennsylvania, to a new seat created by 68 Stat.
He was nominated to the same seat by President Eisenhower on January 12, 1956.
He was confirmed by the United States Senate on March 28, 1956, and received his commission the next day.
Kraft served in that capacity until his death on January 18, 2002, in Key Biscayne, Florida.