CREATE TABLE table_1431467_4 (candidates VARCHAR, incumbent VARCHAR)
SELECT candidates FROM table_1431467_4 WHERE incumbent = "D. Wyatt Aiken"
ใครคือผู้สมัครทั้งหมดเมื่อดำรงตำแหน่งคือ D. Wyatt Aiken?
Who were all candidate when incumbent was D. Wyatt Aiken?