Question: Dixie Kiefer was Executive Officer of the aircraft carrier commisiioned by the Navy starting in what year?
Sentence (from "Dixie Kiefer"): Dixie Kiefer (April 5, 1896 – November 11, 1945) was a United States Navy officer who served during World War II as Executive Officer of USS "Yorktown" and commanding officer of USS "Ticonderoga".
Relevant evidence: Yes