CREATE TABLE table_28880 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" TEXT, "Result" TEXT, "Candidates" TEXT)

Who was the incumbent when the candidate was william drayton (j)?
SELECT "Incumbent" FROM table_28880 WHERE "Candidates" = 'William Drayton (J)'
SELECT "Incumbent" FROM "table_28880" WHERE "Candidates" = 'William Drayton (J)'