CREATE TABLE table_18578 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

What district is eugene worley from?
SELECT "District" FROM table_18578 WHERE "Incumbent" = 'Eugene Worley'
SELECT "District" FROM "table_18578" WHERE "Incumbent" = 'Eugene Worley'