CREATE TABLE table_61539 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

What Method was used with opponent Kenneth Allen?
SELECT "Method" FROM table_61539 WHERE "Opponent" = 'kenneth allen'
SELECT "Method" FROM "table_61539" WHERE "Opponent" = 'kenneth allen'